2859220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1571}}^1$

素因数の和:1600

約数の個数: 48

約数和(自身を含む): 7394688

約数和(自身を除く): 4535468

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1571, 1820, 3142, 6284, 7855, 10997, 15710, 20423, 21994, 31420, 40846, 43988, 54985, 81692, 102115, 109970, 142961, 204230, 219940, 285922, 408460, 571844, 714805, 1429610, 2859220]

約数ペア:

[(1, 2859220), (2, 1429610), (4, 714805), (5, 571844), (7, 408460), (10, 285922), (13, 219940), (14, 204230), (20, 142961), (26, 109970), (28, 102115), (35, 81692), (52, 54985), (65, 43988), (70, 40846), (91, 31420), (130, 21994), (140, 20423), (182, 15710), (260, 10997), (364, 7855), (455, 6284), (910, 3142), (1571, 1820)]