971328020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{25073}}^1$

素因数の和:25244

約数の個数: 48

約数和(自身を含む): 2211526800

約数和(自身を除く): 1240198780

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 149, 260, 298, 596, 745, 1490, 1937, 2980, 3874, 7748, 9685, 19370, 25073, 38740, 50146, 100292, 125365, 250730, 325949, 501460, 651898, 1303796, 1629745, 3259490, 3735877, 6518980, 7471754, 14943508, 18679385, 37358770, 48566401, 74717540, 97132802, 194265604, 242832005, 485664010, 971328020]

約数ペア:

[(1, 971328020), (2, 485664010), (4, 242832005), (5, 194265604), (10, 97132802), (13, 74717540), (20, 48566401), (26, 37358770), (52, 18679385), (65, 14943508), (130, 7471754), (149, 6518980), (260, 3735877), (298, 3259490), (596, 1629745), (745, 1303796), (1490, 651898), (1937, 501460), (2980, 325949), (3874, 250730), (7748, 125365), (9685, 100292), (19370, 50146), (25073, 38740)]