64752640

素因数分解:

$2^{10}\times 5^1\times {\mathrm{12647}}^1$

素因数の和:12672

約数の個数: 44

約数和(自身を含む): 155342736

約数和(自身を除く): 90590096

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 5120, 12647, 25294, 50588, 63235, 101176, 126470, 202352, 252940, 404704, 505880, 809408, 1011760, 1618816, 2023520, 3237632, 4047040, 6475264, 8094080, 12950528, 16188160, 32376320, 64752640]

約数ペア:

[(1, 64752640), (2, 32376320), (4, 16188160), (5, 12950528), (8, 8094080), (10, 6475264), (16, 4047040), (20, 3237632), (32, 2023520), (40, 1618816), (64, 1011760), (80, 809408), (128, 505880), (160, 404704), (256, 252940), (320, 202352), (512, 126470), (640, 101176), (1024, 63235), (1280, 50588), (2560, 25294), (5120, 12647)]