64396160

素因数分解:

$2^7\times 5^1\times {\mathrm{239}}^1\times {\mathrm{421}}^1$

素因数の和:679

約数の個数: 64

約数和(自身を含む): 154958400

約数和(自身を除く): 90562240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 239, 320, 421, 478, 640, 842, 956, 1195, 1684, 1912, 2105, 2390, 3368, 3824, 4210, 4780, 6736, 7648, 8420, 9560, 13472, 15296, 16840, 19120, 26944, 30592, 33680, 38240, 53888, 67360, 76480, 100619, 134720, 152960, 201238, 269440, 402476, 503095, 804952, 1006190, 1609904, 2012380, 3219808, 4024760, 6439616, 8049520, 12879232, 16099040, 32198080, 64396160]

約数ペア:

[(1, 64396160), (2, 32198080), (4, 16099040), (5, 12879232), (8, 8049520), (10, 6439616), (16, 4024760), (20, 3219808), (32, 2012380), (40, 1609904), (64, 1006190), (80, 804952), (128, 503095), (160, 402476), (239, 269440), (320, 201238), (421, 152960), (478, 134720), (640, 100619), (842, 76480), (956, 67360), (1195, 53888), (1684, 38240), (1912, 33680), (2105, 30592), (2390, 26944), (3368, 19120), (3824, 16840), (4210, 15296), (4780, 13472), (6736, 9560), (7648, 8420)]