142739020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{2521}}^1$

素因数の和:2698

約数の個数: 48

約数和(自身を含む): 317772000

約数和(自身を除く): 175032980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 149, 190, 298, 380, 596, 745, 1490, 2521, 2831, 2980, 5042, 5662, 10084, 11324, 12605, 14155, 25210, 28310, 47899, 50420, 56620, 95798, 191596, 239495, 375629, 478990, 751258, 957980, 1502516, 1878145, 3756290, 7136951, 7512580, 14273902, 28547804, 35684755, 71369510, 142739020]

約数ペア:

[(1, 142739020), (2, 71369510), (4, 35684755), (5, 28547804), (10, 14273902), (19, 7512580), (20, 7136951), (38, 3756290), (76, 1878145), (95, 1502516), (149, 957980), (190, 751258), (298, 478990), (380, 375629), (596, 239495), (745, 191596), (1490, 95798), (2521, 56620), (2831, 50420), (2980, 47899), (5042, 28310), (5662, 25210), (10084, 14155), (11324, 12605)]