20209590

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{431}}^1\times {\mathrm{521}}^1$

素因数の和:965

約数の個数: 48

約数和(自身を含む): 52767936

約数和(自身を除く): 32558346

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 431, 521, 862, 1042, 1293, 1563, 2155, 2586, 2605, 3126, 3879, 4310, 4689, 5210, 6465, 7758, 7815, 9378, 12930, 15630, 19395, 23445, 38790, 46890, 224551, 449102, 673653, 1122755, 1347306, 2020959, 2245510, 3368265, 4041918, 6736530, 10104795, 20209590]

約数ペア:

[(1, 20209590), (2, 10104795), (3, 6736530), (5, 4041918), (6, 3368265), (9, 2245510), (10, 2020959), (15, 1347306), (18, 1122755), (30, 673653), (45, 449102), (90, 224551), (431, 46890), (521, 38790), (862, 23445), (1042, 19395), (1293, 15630), (1563, 12930), (2155, 9378), (2586, 7815), (2605, 7758), (3126, 6465), (3879, 5210), (4310, 4689)]