1980225

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{677}}^1$

素因数の和:706

約数の個数: 36

約数和(自身を含む): 3825276

約数和(自身を除く): 1845051

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 65, 75, 117, 195, 225, 325, 585, 677, 975, 2031, 2925, 3385, 6093, 8801, 10155, 16925, 26403, 30465, 44005, 50775, 79209, 132015, 152325, 220025, 396045, 660075, 1980225]

約数ペア:

[(1, 1980225), (3, 660075), (5, 396045), (9, 220025), (13, 152325), (15, 132015), (25, 79209), (39, 50775), (45, 44005), (65, 30465), (75, 26403), (117, 16925), (195, 10155), (225, 8801), (325, 6093), (585, 3385), (677, 2925), (975, 2031)]