87990660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{2999}}^1$

素因数の和:3177

約数の個数: 72

約数和(自身を含む): 268632000

約数和(自身を除く): 180641340

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 163, 180, 326, 489, 652, 815, 978, 1467, 1630, 1956, 2445, 2934, 2999, 3260, 4890, 5868, 5998, 7335, 8997, 9780, 11996, 14670, 14995, 17994, 26991, 29340, 29990, 35988, 44985, 53982, 59980, 89970, 107964, 134955, 179940, 269910, 488837, 539820, 977674, 1466511, 1955348, 2444185, 2933022, 4399533, 4888370, 5866044, 7332555, 8799066, 9776740, 14665110, 17598132, 21997665, 29330220, 43995330, 87990660]

約数ペア:

[(1, 87990660), (2, 43995330), (3, 29330220), (4, 21997665), (5, 17598132), (6, 14665110), (9, 9776740), (10, 8799066), (12, 7332555), (15, 5866044), (18, 4888370), (20, 4399533), (30, 2933022), (36, 2444185), (45, 1955348), (60, 1466511), (90, 977674), (163, 539820), (180, 488837), (326, 269910), (489, 179940), (652, 134955), (815, 107964), (978, 89970), (1467, 59980), (1630, 53982), (1956, 44985), (2445, 35988), (2934, 29990), (2999, 29340), (3260, 26991), (4890, 17994), (5868, 14995), (5998, 14670), (7335, 11996), (8997, 9780)]