20227740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{25933}}^1$

素因数の和:25958

約数の個数: 48

約数和(自身を含む): 60996768

約数和(自身を除く): 40769028

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 25933, 51866, 77799, 103732, 129665, 155598, 259330, 311196, 337129, 388995, 518660, 674258, 777990, 1011387, 1348516, 1555980, 1685645, 2022774, 3371290, 4045548, 5056935, 6742580, 10113870, 20227740]

約数ペア:

[(1, 20227740), (2, 10113870), (3, 6742580), (4, 5056935), (5, 4045548), (6, 3371290), (10, 2022774), (12, 1685645), (13, 1555980), (15, 1348516), (20, 1011387), (26, 777990), (30, 674258), (39, 518660), (52, 388995), (60, 337129), (65, 311196), (78, 259330), (130, 155598), (156, 129665), (195, 103732), (260, 77799), (390, 51866), (780, 25933)]