20147019220

素因数分解:

$2^2\times 5^1\times {\mathrm{179}}^1\times {\mathrm{2213}}^1\times {\mathrm{2543}}^1$

素因数の和:4944

約数の個数: 48

約数和(自身を含む): 42581064960

約数和(自身を除く): 22434045740

約数列:

[1, 2, 4, 5, 10, 20, 179, 358, 716, 895, 1790, 2213, 2543, 3580, 4426, 5086, 8852, 10172, 11065, 12715, 22130, 25430, 44260, 50860, 396127, 455197, 792254, 910394, 1584508, 1820788, 1980635, 2275985, 3961270, 4551970, 5627659, 7922540, 9103940, 11255318, 22510636, 28138295, 56276590, 112553180, 1007350961, 2014701922, 4029403844, 5036754805, 10073509610, 20147019220]

約数ペア:

[(1, 20147019220), (2, 10073509610), (4, 5036754805), (5, 4029403844), (10, 2014701922), (20, 1007350961), (179, 112553180), (358, 56276590), (716, 28138295), (895, 22510636), (1790, 11255318), (2213, 9103940), (2543, 7922540), (3580, 5627659), (4426, 4551970), (5086, 3961270), (8852, 2275985), (10172, 1980635), (11065, 1820788), (12715, 1584508), (22130, 910394), (25430, 792254), (44260, 455197), (50860, 396127)]