74390320

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{449}}^1$

素因数の和:590

約数の個数: 80

約数和(自身を含む): 184140000

約数和(自身を除く): 109749680

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 109, 152, 190, 218, 304, 380, 436, 449, 545, 760, 872, 898, 1090, 1520, 1744, 1796, 2071, 2180, 2245, 3592, 4142, 4360, 4490, 7184, 8284, 8531, 8720, 8980, 10355, 16568, 17062, 17960, 20710, 33136, 34124, 35920, 41420, 42655, 48941, 68248, 82840, 85310, 97882, 136496, 165680, 170620, 195764, 244705, 341240, 391528, 489410, 682480, 783056, 929879, 978820, 1859758, 1957640, 3719516, 3915280, 4649395, 7439032, 9298790, 14878064, 18597580, 37195160, 74390320]

約数ペア:

[(1, 74390320), (2, 37195160), (4, 18597580), (5, 14878064), (8, 9298790), (10, 7439032), (16, 4649395), (19, 3915280), (20, 3719516), (38, 1957640), (40, 1859758), (76, 978820), (80, 929879), (95, 783056), (109, 682480), (152, 489410), (190, 391528), (218, 341240), (304, 244705), (380, 195764), (436, 170620), (449, 165680), (545, 136496), (760, 97882), (872, 85310), (898, 82840), (1090, 68248), (1520, 48941), (1744, 42655), (1796, 41420), (2071, 35920), (2180, 34124), (2245, 33136), (3592, 20710), (4142, 17960), (4360, 17062), (4490, 16568), (7184, 10355), (8284, 8980), (8531, 8720)]