646793960

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{12967}}^1$

素因数の和:13050

約数の個数: 64

約数和(自身を含む): 1540598400

約数和(自身を除く): 893804440

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 43, 58, 86, 116, 145, 172, 215, 232, 290, 344, 430, 580, 860, 1160, 1247, 1720, 2494, 4988, 6235, 9976, 12470, 12967, 24940, 25934, 49880, 51868, 64835, 103736, 129670, 259340, 376043, 518680, 557581, 752086, 1115162, 1504172, 1880215, 2230324, 2787905, 3008344, 3760430, 4460648, 5575810, 7520860, 11151620, 15041720, 16169849, 22303240, 32339698, 64679396, 80849245, 129358792, 161698490, 323396980, 646793960]

約数ペア:

[(1, 646793960), (2, 323396980), (4, 161698490), (5, 129358792), (8, 80849245), (10, 64679396), (20, 32339698), (29, 22303240), (40, 16169849), (43, 15041720), (58, 11151620), (86, 7520860), (116, 5575810), (145, 4460648), (172, 3760430), (215, 3008344), (232, 2787905), (290, 2230324), (344, 1880215), (430, 1504172), (580, 1115162), (860, 752086), (1160, 557581), (1247, 518680), (1720, 376043), (2494, 259340), (4988, 129670), (6235, 103736), (9976, 64835), (12470, 51868), (12967, 49880), (24940, 25934)]