25488560

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1$

素因数の和:238

約数の個数: 80

約数和(自身を含む): 62198400

約数和(自身を除く): 36709840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 79, 80, 109, 148, 158, 185, 218, 296, 316, 370, 395, 436, 545, 592, 632, 740, 790, 872, 1090, 1264, 1480, 1580, 1744, 2180, 2923, 2960, 3160, 4033, 4360, 5846, 6320, 8066, 8611, 8720, 11692, 14615, 16132, 17222, 20165, 23384, 29230, 32264, 34444, 40330, 43055, 46768, 58460, 64528, 68888, 80660, 86110, 116920, 137776, 161320, 172220, 233840, 318607, 322640, 344440, 637214, 688880, 1274428, 1593035, 2548856, 3186070, 5097712, 6372140, 12744280, 25488560]

約数ペア:

[(1, 25488560), (2, 12744280), (4, 6372140), (5, 5097712), (8, 3186070), (10, 2548856), (16, 1593035), (20, 1274428), (37, 688880), (40, 637214), (74, 344440), (79, 322640), (80, 318607), (109, 233840), (148, 172220), (158, 161320), (185, 137776), (218, 116920), (296, 86110), (316, 80660), (370, 68888), (395, 64528), (436, 58460), (545, 46768), (592, 43055), (632, 40330), (740, 34444), (790, 32264), (872, 29230), (1090, 23384), (1264, 20165), (1480, 17222), (1580, 16132), (1744, 14615), (2180, 11692), (2923, 8720), (2960, 8611), (3160, 8066), (4033, 6320), (4360, 5846)]