210441020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{2591}}^1$

素因数の和:2762

約数の個数: 48

約数和(自身を含む): 459841536

約数和(自身を除く): 249400516

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 131, 155, 262, 310, 524, 620, 655, 1310, 2591, 2620, 4061, 5182, 8122, 10364, 12955, 16244, 20305, 25910, 40610, 51820, 80321, 81220, 160642, 321284, 339421, 401605, 678842, 803210, 1357684, 1606420, 1697105, 3394210, 6788420, 10522051, 21044102, 42088204, 52610255, 105220510, 210441020]

約数ペア:

[(1, 210441020), (2, 105220510), (4, 52610255), (5, 42088204), (10, 21044102), (20, 10522051), (31, 6788420), (62, 3394210), (124, 1697105), (131, 1606420), (155, 1357684), (262, 803210), (310, 678842), (524, 401605), (620, 339421), (655, 321284), (1310, 160642), (2591, 81220), (2620, 80321), (4061, 51820), (5182, 40610), (8122, 25910), (10364, 20305), (12955, 16244)]