489731710

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{149}}^1\times {\mathrm{193}}^1$

素因数の和:493

約数の個数: 64

約数和(自身を含む): 967982400

約数和(自身を除く): 478250690

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 131, 149, 193, 262, 298, 386, 655, 745, 965, 1310, 1490, 1703, 1930, 1937, 2509, 3406, 3874, 5018, 8515, 9685, 12545, 17030, 19370, 19519, 25090, 25283, 28757, 39038, 50566, 57514, 97595, 126415, 143785, 195190, 252830, 253747, 287570, 328679, 373841, 507494, 657358, 747682, 1268735, 1643395, 1869205, 2537470, 3286790, 3738410, 3767167, 7534334, 18835835, 37671670, 48973171, 97946342, 244865855, 489731710]

約数ペア:

[(1, 489731710), (2, 244865855), (5, 97946342), (10, 48973171), (13, 37671670), (26, 18835835), (65, 7534334), (130, 3767167), (131, 3738410), (149, 3286790), (193, 2537470), (262, 1869205), (298, 1643395), (386, 1268735), (655, 747682), (745, 657358), (965, 507494), (1310, 373841), (1490, 328679), (1703, 287570), (1930, 253747), (1937, 252830), (2509, 195190), (3406, 143785), (3874, 126415), (5018, 97595), (8515, 57514), (9685, 50566), (12545, 39038), (17030, 28757), (19370, 25283), (19519, 25090)]