20174879940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{2141707}}^1$

素因数の和:2141876

約数の個数: 48

約数和(自身を含む): 56849497152

約数和(自身を除く): 36674617212

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 157, 314, 471, 628, 785, 942, 1570, 1884, 2355, 3140, 4710, 9420, 2141707, 4283414, 6425121, 8566828, 10708535, 12850242, 21417070, 25700484, 32125605, 42834140, 64251210, 128502420, 336247999, 672495998, 1008743997, 1344991996, 1681239995, 2017487994, 3362479990, 4034975988, 5043719985, 6724959980, 10087439970, 20174879940]

約数ペア:

[(1, 20174879940), (2, 10087439970), (3, 6724959980), (4, 5043719985), (5, 4034975988), (6, 3362479990), (10, 2017487994), (12, 1681239995), (15, 1344991996), (20, 1008743997), (30, 672495998), (60, 336247999), (157, 128502420), (314, 64251210), (471, 42834140), (628, 32125605), (785, 25700484), (942, 21417070), (1570, 12850242), (1884, 10708535), (2355, 8566828), (3140, 6425121), (4710, 4283414), (9420, 2141707)]