72864640

素因数分解:

$2^7\times 5^1\times {\mathrm{257}}^1\times {\mathrm{443}}^1$

素因数の和:719

約数の個数: 64

約数和(自身を含む): 175264560

約数和(自身を除く): 102399920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 257, 320, 443, 514, 640, 886, 1028, 1285, 1772, 2056, 2215, 2570, 3544, 4112, 4430, 5140, 7088, 8224, 8860, 10280, 14176, 16448, 17720, 20560, 28352, 32896, 35440, 41120, 56704, 70880, 82240, 113851, 141760, 164480, 227702, 283520, 455404, 569255, 910808, 1138510, 1821616, 2277020, 3643232, 4554040, 7286464, 9108080, 14572928, 18216160, 36432320, 72864640]

約数ペア:

[(1, 72864640), (2, 36432320), (4, 18216160), (5, 14572928), (8, 9108080), (10, 7286464), (16, 4554040), (20, 3643232), (32, 2277020), (40, 1821616), (64, 1138510), (80, 910808), (128, 569255), (160, 455404), (257, 283520), (320, 227702), (443, 164480), (514, 141760), (640, 113851), (886, 82240), (1028, 70880), (1285, 56704), (1772, 41120), (2056, 35440), (2215, 32896), (2570, 28352), (3544, 20560), (4112, 17720), (4430, 16448), (5140, 14176), (7088, 10280), (8224, 8860)]