2250820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{787}}^1$

素因数の和:820

約数の個数: 48

約数和(自身を含む): 5560128

約数和(自身を除く): 3309308

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 787, 1430, 1574, 2860, 3148, 3935, 7870, 8657, 10231, 15740, 17314, 20462, 34628, 40924, 43285, 51155, 86570, 102310, 112541, 173140, 204620, 225082, 450164, 562705, 1125410, 2250820]

約数ペア:

[(1, 2250820), (2, 1125410), (4, 562705), (5, 450164), (10, 225082), (11, 204620), (13, 173140), (20, 112541), (22, 102310), (26, 86570), (44, 51155), (52, 43285), (55, 40924), (65, 34628), (110, 20462), (130, 17314), (143, 15740), (220, 10231), (260, 8657), (286, 7870), (572, 3935), (715, 3148), (787, 2860), (1430, 1574)]