18817320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{191}}^1\times {\mathrm{821}}^1$

素因数の和:1026

約数の個数: 64

約数和(自身を含む): 56816640

約数和(自身を除く): 37999320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 191, 382, 573, 764, 821, 955, 1146, 1528, 1642, 1910, 2292, 2463, 2865, 3284, 3820, 4105, 4584, 4926, 5730, 6568, 7640, 8210, 9852, 11460, 12315, 16420, 19704, 22920, 24630, 32840, 49260, 98520, 156811, 313622, 470433, 627244, 784055, 940866, 1254488, 1568110, 1881732, 2352165, 3136220, 3763464, 4704330, 6272440, 9408660, 18817320]

約数ペア:

[(1, 18817320), (2, 9408660), (3, 6272440), (4, 4704330), (5, 3763464), (6, 3136220), (8, 2352165), (10, 1881732), (12, 1568110), (15, 1254488), (20, 940866), (24, 784055), (30, 627244), (40, 470433), (60, 313622), (120, 156811), (191, 98520), (382, 49260), (573, 32840), (764, 24630), (821, 22920), (955, 19704), (1146, 16420), (1528, 12315), (1642, 11460), (1910, 9852), (2292, 8210), (2463, 7640), (2865, 6568), (3284, 5730), (3820, 4926), (4105, 4584)]