64880720

素因数分解:

$2^4\times 5^1\times {\mathrm{433}}^1\times {\mathrm{1873}}^1$

素因数の和:2319

約数の個数: 40

約数和(自身を含む): 151276776

約数和(自身を除く): 86396056

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 433, 866, 1732, 1873, 2165, 3464, 3746, 4330, 6928, 7492, 8660, 9365, 14984, 17320, 18730, 29968, 34640, 37460, 74920, 149840, 811009, 1622018, 3244036, 4055045, 6488072, 8110090, 12976144, 16220180, 32440360, 64880720]

約数ペア:

[(1, 64880720), (2, 32440360), (4, 16220180), (5, 12976144), (8, 8110090), (10, 6488072), (16, 4055045), (20, 3244036), (40, 1622018), (80, 811009), (433, 149840), (866, 74920), (1732, 37460), (1873, 34640), (2165, 29968), (3464, 18730), (3746, 17320), (4330, 14984), (6928, 9365), (7492, 8660)]