690749440

素因数分解:

$2^{18}\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1$

素因数の和:89

約数の個数: 152

約数和(自身を含む): 1811935872

約数和(自身を除く): 1121186432

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 31, 32, 34, 40, 62, 64, 68, 80, 85, 124, 128, 136, 155, 160, 170, 248, 256, 272, 310, 320, 340, 496, 512, 527, 544, 620, 640, 680, 992, 1024, 1054, 1088, 1240, 1280, 1360, 1984, 2048, 2108, 2176, 2480, 2560, 2635, 2720, 3968, 4096, 4216, 4352, 4960, 5120, 5270, 5440, 7936, 8192, 8432, 8704, 9920, 10240, 10540, 10880, 15872, 16384, 16864, 17408, 19840, 20480, 21080, 21760, 31744, 32768, 33728, 34816, 39680, 40960, 42160, 43520, 63488, 65536, 67456, 69632, 79360, 81920, 84320, 87040, 126976, 131072, 134912, 139264, 158720, 163840, 168640, 174080, 253952, 262144, 269824, 278528, 317440, 327680, 337280, 348160, 507904, 539648, 557056, 634880, 655360, 674560, 696320, 1015808, 1079296, 1114112, 1269760, 1310720, 1349120, 1392640, 2031616, 2158592, 2228224, 2539520, 2698240, 2785280, 4063232, 4317184, 4456448, 5079040, 5396480, 5570560, 8126464, 8634368, 10158080, 10792960, 11141120, 17268736, 20316160, 21585920, 22282240, 34537472, 40632320, 43171840, 69074944, 86343680, 138149888, 172687360, 345374720, 690749440]

約数ペア:

[(1, 690749440), (2, 345374720), (4, 172687360), (5, 138149888), (8, 86343680), (10, 69074944), (16, 43171840), (17, 40632320), (20, 34537472), (31, 22282240), (32, 21585920), (34, 20316160), (40, 17268736), (62, 11141120), (64, 10792960), (68, 10158080), (80, 8634368), (85, 8126464), (124, 5570560), (128, 5396480), (136, 5079040), (155, 4456448), (160, 4317184), (170, 4063232), (248, 2785280), (256, 2698240), (272, 2539520), (310, 2228224), (320, 2158592), (340, 2031616), (496, 1392640), (512, 1349120), (527, 1310720), (544, 1269760), (620, 1114112), (640, 1079296), (680, 1015808), (992, 696320), (1024, 674560), (1054, 655360), (1088, 634880), (1240, 557056), (1280, 539648), (1360, 507904), (1984, 348160), (2048, 337280), (2108, 327680), (2176, 317440), (2480, 278528), (2560, 269824), (2635, 262144), (2720, 253952), (3968, 174080), (4096, 168640), (4216, 163840), (4352, 158720), (4960, 139264), (5120, 134912), (5270, 131072), (5440, 126976), (7936, 87040), (8192, 84320), (8432, 81920), (8704, 79360), (9920, 69632), (10240, 67456), (10540, 65536), (10880, 63488), (15872, 43520), (16384, 42160), (16864, 40960), (17408, 39680), (19840, 34816), (20480, 33728), (21080, 32768), (21760, 31744)]