639731872

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{439}}^1$

素因数の和:606

約数の個数: 96

約数和(自身を含む): 1415715840

約数和(自身を除く): 775983968

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 52, 62, 104, 113, 124, 208, 226, 248, 403, 416, 439, 452, 496, 806, 878, 904, 992, 1469, 1612, 1756, 1808, 2938, 3224, 3503, 3512, 3616, 5707, 5876, 6448, 7006, 7024, 11414, 11752, 12896, 13609, 14012, 14048, 22828, 23504, 27218, 28024, 45539, 45656, 47008, 49607, 54436, 56048, 91078, 91312, 99214, 108872, 112096, 176917, 182156, 182624, 198428, 217744, 353834, 364312, 396856, 435488, 644891, 707668, 728624, 793712, 1289782, 1415336, 1457248, 1537817, 1587424, 2579564, 2830672, 3075634, 5159128, 5661344, 6151268, 10318256, 12302536, 19991621, 20636512, 24605072, 39983242, 49210144, 79966484, 159932968, 319865936, 639731872]

約数ペア:

[(1, 639731872), (2, 319865936), (4, 159932968), (8, 79966484), (13, 49210144), (16, 39983242), (26, 24605072), (31, 20636512), (32, 19991621), (52, 12302536), (62, 10318256), (104, 6151268), (113, 5661344), (124, 5159128), (208, 3075634), (226, 2830672), (248, 2579564), (403, 1587424), (416, 1537817), (439, 1457248), (452, 1415336), (496, 1289782), (806, 793712), (878, 728624), (904, 707668), (992, 644891), (1469, 435488), (1612, 396856), (1756, 364312), (1808, 353834), (2938, 217744), (3224, 198428), (3503, 182624), (3512, 182156), (3616, 176917), (5707, 112096), (5876, 108872), (6448, 99214), (7006, 91312), (7024, 91078), (11414, 56048), (11752, 54436), (12896, 49607), (13609, 47008), (14012, 45656), (14048, 45539), (22828, 28024), (23504, 27218)]