25284840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{971}}^1$

素因数の和:1023

約数の個数: 128

約数和(自身を含む): 89579520

約数和(自身を除く): 64294680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 31, 35, 40, 42, 56, 60, 62, 70, 84, 93, 105, 120, 124, 140, 155, 168, 186, 210, 217, 248, 280, 310, 372, 420, 434, 465, 620, 651, 744, 840, 868, 930, 971, 1085, 1240, 1302, 1736, 1860, 1942, 2170, 2604, 2913, 3255, 3720, 3884, 4340, 4855, 5208, 5826, 6510, 6797, 7768, 8680, 9710, 11652, 13020, 13594, 14565, 19420, 20391, 23304, 26040, 27188, 29130, 30101, 33985, 38840, 40782, 54376, 58260, 60202, 67970, 81564, 90303, 101955, 116520, 120404, 135940, 150505, 163128, 180606, 203910, 210707, 240808, 271880, 301010, 361212, 407820, 421414, 451515, 602020, 632121, 722424, 815640, 842828, 903030, 1053535, 1204040, 1264242, 1685656, 1806060, 2107070, 2528484, 3160605, 3612120, 4214140, 5056968, 6321210, 8428280, 12642420, 25284840]

約数ペア:

[(1, 25284840), (2, 12642420), (3, 8428280), (4, 6321210), (5, 5056968), (6, 4214140), (7, 3612120), (8, 3160605), (10, 2528484), (12, 2107070), (14, 1806060), (15, 1685656), (20, 1264242), (21, 1204040), (24, 1053535), (28, 903030), (30, 842828), (31, 815640), (35, 722424), (40, 632121), (42, 602020), (56, 451515), (60, 421414), (62, 407820), (70, 361212), (84, 301010), (93, 271880), (105, 240808), (120, 210707), (124, 203910), (140, 180606), (155, 163128), (168, 150505), (186, 135940), (210, 120404), (217, 116520), (248, 101955), (280, 90303), (310, 81564), (372, 67970), (420, 60202), (434, 58260), (465, 54376), (620, 40782), (651, 38840), (744, 33985), (840, 30101), (868, 29130), (930, 27188), (971, 26040), (1085, 23304), (1240, 20391), (1302, 19420), (1736, 14565), (1860, 13594), (1942, 13020), (2170, 11652), (2604, 9710), (2913, 8680), (3255, 7768), (3720, 6797), (3884, 6510), (4340, 5826), (4855, 5208)]