21410640

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{227}}^1$

素因数の和:377

約数の個数: 120

約数和(自身を含む): 72772128

約数和(自身を除く): 51361488

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 131, 144, 180, 227, 240, 262, 360, 393, 454, 524, 655, 681, 720, 786, 908, 1048, 1135, 1179, 1310, 1362, 1572, 1816, 1965, 2043, 2096, 2270, 2358, 2620, 2724, 3144, 3405, 3632, 3930, 4086, 4540, 4716, 5240, 5448, 5895, 6288, 6810, 7860, 8172, 9080, 9432, 10215, 10480, 10896, 11790, 13620, 15720, 16344, 18160, 18864, 20430, 23580, 27240, 29737, 31440, 32688, 40860, 47160, 54480, 59474, 81720, 89211, 94320, 118948, 148685, 163440, 178422, 237896, 267633, 297370, 356844, 446055, 475792, 535266, 594740, 713688, 892110, 1070532, 1189480, 1338165, 1427376, 1784220, 2141064, 2378960, 2676330, 3568440, 4282128, 5352660, 7136880, 10705320, 21410640]

約数ペア:

[(1, 21410640), (2, 10705320), (3, 7136880), (4, 5352660), (5, 4282128), (6, 3568440), (8, 2676330), (9, 2378960), (10, 2141064), (12, 1784220), (15, 1427376), (16, 1338165), (18, 1189480), (20, 1070532), (24, 892110), (30, 713688), (36, 594740), (40, 535266), (45, 475792), (48, 446055), (60, 356844), (72, 297370), (80, 267633), (90, 237896), (120, 178422), (131, 163440), (144, 148685), (180, 118948), (227, 94320), (240, 89211), (262, 81720), (360, 59474), (393, 54480), (454, 47160), (524, 40860), (655, 32688), (681, 31440), (720, 29737), (786, 27240), (908, 23580), (1048, 20430), (1135, 18864), (1179, 18160), (1310, 16344), (1362, 15720), (1572, 13620), (1816, 11790), (1965, 10896), (2043, 10480), (2096, 10215), (2270, 9432), (2358, 9080), (2620, 8172), (2724, 7860), (3144, 6810), (3405, 6288), (3632, 5895), (3930, 5448), (4086, 5240), (4540, 4716)]