221707640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71983}}^1$

素因数の和:72012

約数の個数: 64

約数和(自身を含む): 621941760

約数和(自身を除く): 400234120

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 140, 154, 220, 280, 308, 385, 440, 616, 770, 1540, 3080, 71983, 143966, 287932, 359915, 503881, 575864, 719830, 791813, 1007762, 1439660, 1583626, 2015524, 2519405, 2879320, 3167252, 3959065, 4031048, 5038810, 5542691, 6334504, 7918130, 10077620, 11085382, 15836260, 20155240, 22170764, 27713455, 31672520, 44341528, 55426910, 110853820, 221707640]

約数ペア:

[(1, 221707640), (2, 110853820), (4, 55426910), (5, 44341528), (7, 31672520), (8, 27713455), (10, 22170764), (11, 20155240), (14, 15836260), (20, 11085382), (22, 10077620), (28, 7918130), (35, 6334504), (40, 5542691), (44, 5038810), (55, 4031048), (56, 3959065), (70, 3167252), (77, 2879320), (88, 2519405), (110, 2015524), (140, 1583626), (154, 1439660), (220, 1007762), (280, 791813), (308, 719830), (385, 575864), (440, 503881), (616, 359915), (770, 287932), (1540, 143966), (3080, 71983)]