199941615

素因数分解:

$3^5\times 5^1\times {\mathrm{43}}^2\times {\mathrm{89}}^1$

素因数の和:195

約数の個数: 72

約数和(自身を含む): 372088080

約数和(自身を除く): 172146465

約数列:

[1, 3, 5, 9, 15, 27, 43, 45, 81, 89, 129, 135, 215, 243, 267, 387, 405, 445, 645, 801, 1161, 1215, 1335, 1849, 1935, 2403, 3483, 3827, 4005, 5547, 5805, 7209, 9245, 10449, 11481, 12015, 16641, 17415, 19135, 21627, 27735, 34443, 36045, 49923, 52245, 57405, 83205, 103329, 108135, 149769, 164561, 172215, 249615, 309987, 449307, 493683, 516645, 748845, 822805, 929961, 1481049, 1549935, 2246535, 2468415, 4443147, 4649805, 7405245, 13329441, 22215735, 39988323, 66647205, 199941615]

約数ペア:

[(1, 199941615), (3, 66647205), (5, 39988323), (9, 22215735), (15, 13329441), (27, 7405245), (43, 4649805), (45, 4443147), (81, 2468415), (89, 2246535), (129, 1549935), (135, 1481049), (215, 929961), (243, 822805), (267, 748845), (387, 516645), (405, 493683), (445, 449307), (645, 309987), (801, 249615), (1161, 172215), (1215, 164561), (1335, 149769), (1849, 108135), (1935, 103329), (2403, 83205), (3483, 57405), (3827, 52245), (4005, 49923), (5547, 36045), (5805, 34443), (7209, 27735), (9245, 21627), (10449, 19135), (11481, 17415), (12015, 16641)]