8278720

素因数分解:

$2^6\times 5^1\times {\mathrm{41}}^1\times {\mathrm{631}}^1$

素因数の和:689

約数の個数: 56

約数和(自身を含む): 20226528

約数和(自身を除く): 11947808

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 160, 164, 205, 320, 328, 410, 631, 656, 820, 1262, 1312, 1640, 2524, 2624, 3155, 3280, 5048, 6310, 6560, 10096, 12620, 13120, 20192, 25240, 25871, 40384, 50480, 51742, 100960, 103484, 129355, 201920, 206968, 258710, 413936, 517420, 827872, 1034840, 1655744, 2069680, 4139360, 8278720]

約数ペア:

[(1, 8278720), (2, 4139360), (4, 2069680), (5, 1655744), (8, 1034840), (10, 827872), (16, 517420), (20, 413936), (32, 258710), (40, 206968), (41, 201920), (64, 129355), (80, 103484), (82, 100960), (160, 51742), (164, 50480), (205, 40384), (320, 25871), (328, 25240), (410, 20192), (631, 13120), (656, 12620), (820, 10096), (1262, 6560), (1312, 6310), (1640, 5048), (2524, 3280), (2624, 3155)]