398879480

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{271}}^1\times {\mathrm{1187}}^1$

素因数の和:1500

約数の個数: 64

約数和(自身を含む): 930631680

約数和(自身を除く): 531752200

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 271, 310, 542, 620, 1084, 1187, 1240, 1355, 2168, 2374, 2710, 4748, 5420, 5935, 8401, 9496, 10840, 11870, 16802, 23740, 33604, 36797, 42005, 47480, 67208, 73594, 84010, 147188, 168020, 183985, 294376, 321677, 336040, 367970, 643354, 735940, 1286708, 1471880, 1608385, 2573416, 3216770, 6433540, 9971987, 12867080, 19943974, 39887948, 49859935, 79775896, 99719870, 199439740, 398879480]

約数ペア:

[(1, 398879480), (2, 199439740), (4, 99719870), (5, 79775896), (8, 49859935), (10, 39887948), (20, 19943974), (31, 12867080), (40, 9971987), (62, 6433540), (124, 3216770), (155, 2573416), (248, 1608385), (271, 1471880), (310, 1286708), (542, 735940), (620, 643354), (1084, 367970), (1187, 336040), (1240, 321677), (1355, 294376), (2168, 183985), (2374, 168020), (2710, 147188), (4748, 84010), (5420, 73594), (5935, 67208), (8401, 47480), (9496, 42005), (10840, 36797), (11870, 33604), (16802, 23740)]