81884660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{28631}}^1$

素因数の和:28664

約数の個数: 48

約数和(自身を含む): 202027392

約数和(自身を除く): 120142732

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, 1430, 2860, 28631, 57262, 114524, 143155, 286310, 314941, 372203, 572620, 629882, 744406, 1259764, 1488812, 1574705, 1861015, 3149410, 3722030, 4094233, 6298820, 7444060, 8188466, 16376932, 20471165, 40942330, 81884660]

約数ペア:

[(1, 81884660), (2, 40942330), (4, 20471165), (5, 16376932), (10, 8188466), (11, 7444060), (13, 6298820), (20, 4094233), (22, 3722030), (26, 3149410), (44, 1861015), (52, 1574705), (55, 1488812), (65, 1259764), (110, 744406), (130, 629882), (143, 572620), (220, 372203), (260, 314941), (286, 286310), (572, 143155), (715, 114524), (1430, 57262), (2860, 28631)]