15812640

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1$

素因数の和:239

約数の個数: 144

約数和(自身を含む): 55036800

約数和(自身を除く): 39224160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 79, 80, 90, 96, 120, 139, 144, 158, 160, 180, 237, 240, 278, 288, 316, 360, 395, 417, 474, 480, 556, 632, 695, 711, 720, 790, 834, 948, 1112, 1185, 1251, 1264, 1390, 1422, 1440, 1580, 1668, 1896, 2085, 2224, 2370, 2502, 2528, 2780, 2844, 3160, 3336, 3555, 3792, 4170, 4448, 4740, 5004, 5560, 5688, 6255, 6320, 6672, 7110, 7584, 8340, 9480, 10008, 10981, 11120, 11376, 12510, 12640, 13344, 14220, 16680, 18960, 20016, 21962, 22240, 22752, 25020, 28440, 32943, 33360, 37920, 40032, 43924, 50040, 54905, 56880, 65886, 66720, 87848, 98829, 100080, 109810, 113760, 131772, 164715, 175696, 197658, 200160, 219620, 263544, 329430, 351392, 395316, 439240, 494145, 527088, 658860, 790632, 878480, 988290, 1054176, 1317720, 1581264, 1756960, 1976580, 2635440, 3162528, 3953160, 5270880, 7906320, 15812640]

約数ペア:

[(1, 15812640), (2, 7906320), (3, 5270880), (4, 3953160), (5, 3162528), (6, 2635440), (8, 1976580), (9, 1756960), (10, 1581264), (12, 1317720), (15, 1054176), (16, 988290), (18, 878480), (20, 790632), (24, 658860), (30, 527088), (32, 494145), (36, 439240), (40, 395316), (45, 351392), (48, 329430), (60, 263544), (72, 219620), (79, 200160), (80, 197658), (90, 175696), (96, 164715), (120, 131772), (139, 113760), (144, 109810), (158, 100080), (160, 98829), (180, 87848), (237, 66720), (240, 65886), (278, 56880), (288, 54905), (316, 50040), (360, 43924), (395, 40032), (417, 37920), (474, 33360), (480, 32943), (556, 28440), (632, 25020), (695, 22752), (711, 22240), (720, 21962), (790, 20016), (834, 18960), (948, 16680), (1112, 14220), (1185, 13344), (1251, 12640), (1264, 12510), (1390, 11376), (1422, 11120), (1440, 10981), (1580, 10008), (1668, 9480), (1896, 8340), (2085, 7584), (2224, 7110), (2370, 6672), (2502, 6320), (2528, 6255), (2780, 5688), (2844, 5560), (3160, 5004), (3336, 4740), (3555, 4448), (3792, 4170)]