639324160

素因数分解:

$2^{12}\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1$

素因数の和:132

約数の個数: 208

約数和(自身を含む): 1698485760

約数和(自身を除く): 1059161600

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 32, 38, 40, 53, 62, 64, 76, 80, 95, 106, 124, 128, 152, 155, 160, 190, 212, 248, 256, 265, 304, 310, 320, 380, 424, 496, 512, 530, 589, 608, 620, 640, 760, 848, 992, 1007, 1024, 1060, 1178, 1216, 1240, 1280, 1520, 1643, 1696, 1984, 2014, 2048, 2120, 2356, 2432, 2480, 2560, 2945, 3040, 3286, 3392, 3968, 4028, 4096, 4240, 4712, 4864, 4960, 5035, 5120, 5890, 6080, 6572, 6784, 7936, 8056, 8215, 8480, 9424, 9728, 9920, 10070, 10240, 11780, 12160, 13144, 13568, 15872, 16112, 16430, 16960, 18848, 19456, 19840, 20140, 20480, 23560, 24320, 26288, 27136, 31217, 31744, 32224, 32860, 33920, 37696, 38912, 39680, 40280, 47120, 48640, 52576, 54272, 62434, 63488, 64448, 65720, 67840, 75392, 77824, 79360, 80560, 94240, 97280, 105152, 108544, 124868, 126976, 128896, 131440, 135680, 150784, 156085, 158720, 161120, 188480, 194560, 210304, 217088, 249736, 257792, 262880, 271360, 301568, 312170, 317440, 322240, 376960, 389120, 420608, 499472, 515584, 525760, 542720, 603136, 624340, 634880, 644480, 753920, 841216, 998944, 1031168, 1051520, 1085440, 1206272, 1248680, 1288960, 1507840, 1682432, 1997888, 2062336, 2103040, 2412544, 2497360, 2577920, 3015680, 3364864, 3995776, 4124672, 4206080, 4994720, 5155840, 6031360, 6729728, 7991552, 8412160, 9989440, 10311680, 12062720, 15983104, 16824320, 19978880, 20623360, 31966208, 33648640, 39957760, 63932416, 79915520, 127864832, 159831040, 319662080, 639324160]

約数ペア:

[(1, 639324160), (2, 319662080), (4, 159831040), (5, 127864832), (8, 79915520), (10, 63932416), (16, 39957760), (19, 33648640), (20, 31966208), (31, 20623360), (32, 19978880), (38, 16824320), (40, 15983104), (53, 12062720), (62, 10311680), (64, 9989440), (76, 8412160), (80, 7991552), (95, 6729728), (106, 6031360), (124, 5155840), (128, 4994720), (152, 4206080), (155, 4124672), (160, 3995776), (190, 3364864), (212, 3015680), (248, 2577920), (256, 2497360), (265, 2412544), (304, 2103040), (310, 2062336), (320, 1997888), (380, 1682432), (424, 1507840), (496, 1288960), (512, 1248680), (530, 1206272), (589, 1085440), (608, 1051520), (620, 1031168), (640, 998944), (760, 841216), (848, 753920), (992, 644480), (1007, 634880), (1024, 624340), (1060, 603136), (1178, 542720), (1216, 525760), (1240, 515584), (1280, 499472), (1520, 420608), (1643, 389120), (1696, 376960), (1984, 322240), (2014, 317440), (2048, 312170), (2120, 301568), (2356, 271360), (2432, 262880), (2480, 257792), (2560, 249736), (2945, 217088), (3040, 210304), (3286, 194560), (3392, 188480), (3968, 161120), (4028, 158720), (4096, 156085), (4240, 150784), (4712, 135680), (4864, 131440), (4960, 128896), (5035, 126976), (5120, 124868), (5890, 108544), (6080, 105152), (6572, 97280), (6784, 94240), (7936, 80560), (8056, 79360), (8215, 77824), (8480, 75392), (9424, 67840), (9728, 65720), (9920, 64448), (10070, 63488), (10240, 62434), (11780, 54272), (12160, 52576), (13144, 48640), (13568, 47120), (15872, 40280), (16112, 39680), (16430, 38912), (16960, 37696), (18848, 33920), (19456, 32860), (19840, 32224), (20140, 31744), (20480, 31217), (23560, 27136), (24320, 26288)]