18240210

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{521}}^1$

素因数の和:923

約数の個数: 48

約数和(自身を含む): 47637720

約数和(自身を除く): 29397510

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 389, 521, 778, 1042, 1167, 1563, 1945, 2334, 2605, 3126, 3501, 3890, 4689, 5210, 5835, 7002, 7815, 9378, 11670, 15630, 17505, 23445, 35010, 46890, 202669, 405338, 608007, 1013345, 1216014, 1824021, 2026690, 3040035, 3648042, 6080070, 9120105, 18240210]

約数ペア:

[(1, 18240210), (2, 9120105), (3, 6080070), (5, 3648042), (6, 3040035), (9, 2026690), (10, 1824021), (15, 1216014), (18, 1013345), (30, 608007), (45, 405338), (90, 202669), (389, 46890), (521, 35010), (778, 23445), (1042, 17505), (1167, 15630), (1563, 11670), (1945, 9378), (2334, 7815), (2605, 7002), (3126, 5835), (3501, 5210), (3890, 4689)]