20840520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{173671}}^1$

素因数の和:173685

約数の個数: 32

約数和(自身を含む): 62521920

約数和(自身を除く): 41681400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 173671, 347342, 521013, 694684, 868355, 1042026, 1389368, 1736710, 2084052, 2605065, 3473420, 4168104, 5210130, 6946840, 10420260, 20840520]

約数ペア:

[(1, 20840520), (2, 10420260), (3, 6946840), (4, 5210130), (5, 4168104), (6, 3473420), (8, 2605065), (10, 2084052), (12, 1736710), (15, 1389368), (20, 1042026), (24, 868355), (30, 694684), (40, 521013), (60, 347342), (120, 173671)]