1620172015

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{12791}}^1$

素因数の和:12868

約数の個数: 48

約数和(自身を含む): 2519921664

約数和(自身を除く): 899749649

約数列:

[1, 5, 7, 11, 35, 47, 49, 55, 77, 235, 245, 329, 385, 517, 539, 1645, 2303, 2585, 2695, 3619, 11515, 12791, 18095, 25333, 63955, 89537, 126665, 140701, 447685, 601177, 626759, 703505, 984907, 3005885, 3133795, 4208239, 4924535, 6612947, 6894349, 21041195, 29457673, 33064735, 34471745, 46290629, 147288365, 231453145, 324034403, 1620172015]

約数ペア:

[(1, 1620172015), (5, 324034403), (7, 231453145), (11, 147288365), (35, 46290629), (47, 34471745), (49, 33064735), (55, 29457673), (77, 21041195), (235, 6894349), (245, 6612947), (329, 4924535), (385, 4208239), (517, 3133795), (539, 3005885), (1645, 984907), (2303, 703505), (2585, 626759), (2695, 601177), (3619, 447685), (11515, 140701), (12791, 126665), (18095, 89537), (25333, 63955)]