201518980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{59621}}^1$

素因数の和:59656

約数の個数: 36

約数和(自身を含む): 458254692

約数和(自身を除く): 256735712

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 59621, 119242, 238484, 298105, 596210, 775073, 1192420, 1550146, 3100292, 3875365, 7750730, 10075949, 15501460, 20151898, 40303796, 50379745, 100759490, 201518980]

約数ペア:

[(1, 201518980), (2, 100759490), (4, 50379745), (5, 40303796), (10, 20151898), (13, 15501460), (20, 10075949), (26, 7750730), (52, 3875365), (65, 3100292), (130, 1550146), (169, 1192420), (260, 775073), (338, 596210), (676, 298105), (845, 238484), (1690, 119242), (3380, 59621)]