20846640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{86861}}^1$

素因数の和:86877

約数の個数: 40

約数和(自身を含む): 64625328

約数和(自身を除く): 43778688

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 86861, 173722, 260583, 347444, 434305, 521166, 694888, 868610, 1042332, 1302915, 1389776, 1737220, 2084664, 2605830, 3474440, 4169328, 5211660, 6948880, 10423320, 20846640]

約数ペア:

[(1, 20846640), (2, 10423320), (3, 6948880), (4, 5211660), (5, 4169328), (6, 3474440), (8, 2605830), (10, 2084664), (12, 1737220), (15, 1389776), (16, 1302915), (20, 1042332), (24, 868610), (30, 694888), (40, 521166), (48, 434305), (60, 347444), (80, 260583), (120, 173722), (240, 86861)]