642495700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{461}}^1$

素因数の和:674

約数の個数: 144

約数和(自身を含む): 1751637888

約数和(自身を除く): 1109142188

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 25, 28, 35, 44, 50, 55, 70, 77, 100, 110, 140, 154, 175, 181, 220, 275, 308, 350, 362, 385, 461, 550, 700, 724, 770, 905, 922, 1100, 1267, 1540, 1810, 1844, 1925, 1991, 2305, 2534, 3227, 3620, 3850, 3982, 4525, 4610, 5068, 5071, 6335, 6454, 7700, 7964, 9050, 9220, 9955, 10142, 11525, 12670, 12908, 13937, 16135, 18100, 19910, 20284, 23050, 25340, 25355, 27874, 31675, 32270, 35497, 39820, 46100, 49775, 50710, 55748, 63350, 64540, 69685, 70994, 80675, 83441, 99550, 101420, 126700, 126775, 139370, 141988, 161350, 166882, 177485, 199100, 253550, 278740, 322700, 333764, 348425, 354970, 417205, 507100, 584087, 696850, 709940, 834410, 887425, 917851, 1168174, 1393700, 1668820, 1774850, 1835702, 2086025, 2336348, 2920435, 3549700, 3671404, 4172050, 4589255, 5840870, 6424957, 8344100, 9178510, 11681740, 12849914, 14602175, 18357020, 22946275, 25699828, 29204350, 32124785, 45892550, 58408700, 64249570, 91785100, 128499140, 160623925, 321247850, 642495700]

約数ペア:

[(1, 642495700), (2, 321247850), (4, 160623925), (5, 128499140), (7, 91785100), (10, 64249570), (11, 58408700), (14, 45892550), (20, 32124785), (22, 29204350), (25, 25699828), (28, 22946275), (35, 18357020), (44, 14602175), (50, 12849914), (55, 11681740), (70, 9178510), (77, 8344100), (100, 6424957), (110, 5840870), (140, 4589255), (154, 4172050), (175, 3671404), (181, 3549700), (220, 2920435), (275, 2336348), (308, 2086025), (350, 1835702), (362, 1774850), (385, 1668820), (461, 1393700), (550, 1168174), (700, 917851), (724, 887425), (770, 834410), (905, 709940), (922, 696850), (1100, 584087), (1267, 507100), (1540, 417205), (1810, 354970), (1844, 348425), (1925, 333764), (1991, 322700), (2305, 278740), (2534, 253550), (3227, 199100), (3620, 177485), (3850, 166882), (3982, 161350), (4525, 141988), (4610, 139370), (5068, 126775), (5071, 126700), (6335, 101420), (6454, 99550), (7700, 83441), (7964, 80675), (9050, 70994), (9220, 69685), (9955, 64540), (10142, 63350), (11525, 55748), (12670, 50710), (12908, 49775), (13937, 46100), (16135, 39820), (18100, 35497), (19910, 32270), (20284, 31675), (23050, 27874), (25340, 25355)]