65321120

素因数分解:

$2^5\times 5^1\times {\mathrm{631}}^1\times {\mathrm{647}}^1$

素因数の和:1293

約数の個数: 48

約数和(自身を含む): 154804608

約数和(自身を除く): 89483488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 631, 647, 1262, 1294, 2524, 2588, 3155, 3235, 5048, 5176, 6310, 6470, 10096, 10352, 12620, 12940, 20192, 20704, 25240, 25880, 50480, 51760, 100960, 103520, 408257, 816514, 1633028, 2041285, 3266056, 4082570, 6532112, 8165140, 13064224, 16330280, 32660560, 65321120]

約数ペア:

[(1, 65321120), (2, 32660560), (4, 16330280), (5, 13064224), (8, 8165140), (10, 6532112), (16, 4082570), (20, 3266056), (32, 2041285), (40, 1633028), (80, 816514), (160, 408257), (631, 103520), (647, 100960), (1262, 51760), (1294, 50480), (2524, 25880), (2588, 25240), (3155, 20704), (3235, 20192), (5048, 12940), (5176, 12620), (6310, 10352), (6470, 10096)]