1640529920

素因数分解:

$2^{15}\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:102

約数の個数: 256

約数和(自身を含む): 4529779200

約数和(自身を除く): 2889249280

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 31, 32, 34, 38, 40, 62, 64, 68, 76, 80, 85, 95, 124, 128, 136, 152, 155, 160, 170, 190, 248, 256, 272, 304, 310, 320, 323, 340, 380, 496, 512, 527, 544, 589, 608, 620, 640, 646, 680, 760, 992, 1024, 1054, 1088, 1178, 1216, 1240, 1280, 1292, 1360, 1520, 1615, 1984, 2048, 2108, 2176, 2356, 2432, 2480, 2560, 2584, 2635, 2720, 2945, 3040, 3230, 3968, 4096, 4216, 4352, 4712, 4864, 4960, 5120, 5168, 5270, 5440, 5890, 6080, 6460, 7936, 8192, 8432, 8704, 9424, 9728, 9920, 10013, 10240, 10336, 10540, 10880, 11780, 12160, 12920, 15872, 16384, 16864, 17408, 18848, 19456, 19840, 20026, 20480, 20672, 21080, 21760, 23560, 24320, 25840, 31744, 32768, 33728, 34816, 37696, 38912, 39680, 40052, 40960, 41344, 42160, 43520, 47120, 48640, 50065, 51680, 63488, 67456, 69632, 75392, 77824, 79360, 80104, 81920, 82688, 84320, 87040, 94240, 97280, 100130, 103360, 126976, 134912, 139264, 150784, 155648, 158720, 160208, 163840, 165376, 168640, 174080, 188480, 194560, 200260, 206720, 253952, 269824, 278528, 301568, 311296, 317440, 320416, 330752, 337280, 348160, 376960, 389120, 400520, 413440, 507904, 539648, 557056, 603136, 622592, 634880, 640832, 661504, 674560, 696320, 753920, 778240, 801040, 826880, 1015808, 1079296, 1206272, 1269760, 1281664, 1323008, 1349120, 1392640, 1507840, 1556480, 1602080, 1653760, 2158592, 2412544, 2539520, 2563328, 2646016, 2698240, 2785280, 3015680, 3112960, 3204160, 3307520, 4317184, 4825088, 5079040, 5126656, 5292032, 5396480, 6031360, 6408320, 6615040, 8634368, 9650176, 10253312, 10584064, 10792960, 12062720, 12816640, 13230080, 17268736, 19300352, 20506624, 21585920, 24125440, 25633280, 26460160, 41013248, 43171840, 48250880, 51266560, 52920320, 82026496, 86343680, 96501760, 102533120, 164052992, 205066240, 328105984, 410132480, 820264960, 1640529920]

約数ペア:

[(1, 1640529920), (2, 820264960), (4, 410132480), (5, 328105984), (8, 205066240), (10, 164052992), (16, 102533120), (17, 96501760), (19, 86343680), (20, 82026496), (31, 52920320), (32, 51266560), (34, 48250880), (38, 43171840), (40, 41013248), (62, 26460160), (64, 25633280), (68, 24125440), (76, 21585920), (80, 20506624), (85, 19300352), (95, 17268736), (124, 13230080), (128, 12816640), (136, 12062720), (152, 10792960), (155, 10584064), (160, 10253312), (170, 9650176), (190, 8634368), (248, 6615040), (256, 6408320), (272, 6031360), (304, 5396480), (310, 5292032), (320, 5126656), (323, 5079040), (340, 4825088), (380, 4317184), (496, 3307520), (512, 3204160), (527, 3112960), (544, 3015680), (589, 2785280), (608, 2698240), (620, 2646016), (640, 2563328), (646, 2539520), (680, 2412544), (760, 2158592), (992, 1653760), (1024, 1602080), (1054, 1556480), (1088, 1507840), (1178, 1392640), (1216, 1349120), (1240, 1323008), (1280, 1281664), (1292, 1269760), (1360, 1206272), (1520, 1079296), (1615, 1015808), (1984, 826880), (2048, 801040), (2108, 778240), (2176, 753920), (2356, 696320), (2432, 674560), (2480, 661504), (2560, 640832), (2584, 634880), (2635, 622592), (2720, 603136), (2945, 557056), (3040, 539648), (3230, 507904), (3968, 413440), (4096, 400520), (4216, 389120), (4352, 376960), (4712, 348160), (4864, 337280), (4960, 330752), (5120, 320416), (5168, 317440), (5270, 311296), (5440, 301568), (5890, 278528), (6080, 269824), (6460, 253952), (7936, 206720), (8192, 200260), (8432, 194560), (8704, 188480), (9424, 174080), (9728, 168640), (9920, 165376), (10013, 163840), (10240, 160208), (10336, 158720), (10540, 155648), (10880, 150784), (11780, 139264), (12160, 134912), (12920, 126976), (15872, 103360), (16384, 100130), (16864, 97280), (17408, 94240), (18848, 87040), (19456, 84320), (19840, 82688), (20026, 81920), (20480, 80104), (20672, 79360), (21080, 77824), (21760, 75392), (23560, 69632), (24320, 67456), (25840, 63488), (31744, 51680), (32768, 50065), (33728, 48640), (34816, 47120), (37696, 43520), (38912, 42160), (39680, 41344), (40052, 40960)]