65026480

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{10289}}^1$

素因数の和:10381

約数の個数: 40

約数和(自身を含む): 153115200

約数和(自身を除く): 88088720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 3160, 6320, 10289, 20578, 41156, 51445, 82312, 102890, 164624, 205780, 411560, 812831, 823120, 1625662, 3251324, 4064155, 6502648, 8128310, 13005296, 16256620, 32513240, 65026480]

約数ペア:

[(1, 65026480), (2, 32513240), (4, 16256620), (5, 13005296), (8, 8128310), (10, 6502648), (16, 4064155), (20, 3251324), (40, 1625662), (79, 823120), (80, 812831), (158, 411560), (316, 205780), (395, 164624), (632, 102890), (790, 82312), (1264, 51445), (1580, 41156), (3160, 20578), (6320, 10289)]