28915440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{211}}^1\times {\mathrm{571}}^1$

素因数の和:798

約数の個数: 80

約数和(自身を含む): 90220416

約数和(自身を除く): 61304976

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 211, 240, 422, 571, 633, 844, 1055, 1142, 1266, 1688, 1713, 2110, 2284, 2532, 2855, 3165, 3376, 3426, 4220, 4568, 5064, 5710, 6330, 6852, 8440, 8565, 9136, 10128, 11420, 12660, 13704, 16880, 17130, 22840, 25320, 27408, 34260, 45680, 50640, 68520, 120481, 137040, 240962, 361443, 481924, 602405, 722886, 963848, 1204810, 1445772, 1807215, 1927696, 2409620, 2891544, 3614430, 4819240, 5783088, 7228860, 9638480, 14457720, 28915440]

約数ペア:

[(1, 28915440), (2, 14457720), (3, 9638480), (4, 7228860), (5, 5783088), (6, 4819240), (8, 3614430), (10, 2891544), (12, 2409620), (15, 1927696), (16, 1807215), (20, 1445772), (24, 1204810), (30, 963848), (40, 722886), (48, 602405), (60, 481924), (80, 361443), (120, 240962), (211, 137040), (240, 120481), (422, 68520), (571, 50640), (633, 45680), (844, 34260), (1055, 27408), (1142, 25320), (1266, 22840), (1688, 17130), (1713, 16880), (2110, 13704), (2284, 12660), (2532, 11420), (2855, 10128), (3165, 9136), (3376, 8565), (3426, 8440), (4220, 6852), (4568, 6330), (5064, 5710)]