18830580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1999}}^1$

素因数の和:2168

約数の個数: 48

約数和(自身を含む): 53088000

約数和(自身を除く): 34257420

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 157, 314, 471, 628, 785, 942, 1570, 1884, 1999, 2355, 3140, 3998, 4710, 5997, 7996, 9420, 9995, 11994, 19990, 23988, 29985, 39980, 59970, 119940, 313843, 627686, 941529, 1255372, 1569215, 1883058, 3138430, 3766116, 4707645, 6276860, 9415290, 18830580]

約数ペア:

[(1, 18830580), (2, 9415290), (3, 6276860), (4, 4707645), (5, 3766116), (6, 3138430), (10, 1883058), (12, 1569215), (15, 1255372), (20, 941529), (30, 627686), (60, 313843), (157, 119940), (314, 59970), (471, 39980), (628, 29985), (785, 23988), (942, 19990), (1570, 11994), (1884, 9995), (1999, 9420), (2355, 7996), (3140, 5997), (3998, 4710)]