123465780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{281}}^1\times {\mathrm{2441}}^1$

素因数の和:2737

約数の個数: 72

約数和(自身を含む): 375999624

約数和(自身を除く): 252533844

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 281, 562, 843, 1124, 1405, 1686, 2441, 2529, 2810, 3372, 4215, 4882, 5058, 5620, 7323, 8430, 9764, 10116, 12205, 12645, 14646, 16860, 21969, 24410, 25290, 29292, 36615, 43938, 48820, 50580, 73230, 87876, 109845, 146460, 219690, 439380, 685921, 1371842, 2057763, 2743684, 3429605, 4115526, 6173289, 6859210, 8231052, 10288815, 12346578, 13718420, 20577630, 24693156, 30866445, 41155260, 61732890, 123465780]

約数ペア:

[(1, 123465780), (2, 61732890), (3, 41155260), (4, 30866445), (5, 24693156), (6, 20577630), (9, 13718420), (10, 12346578), (12, 10288815), (15, 8231052), (18, 6859210), (20, 6173289), (30, 4115526), (36, 3429605), (45, 2743684), (60, 2057763), (90, 1371842), (180, 685921), (281, 439380), (562, 219690), (843, 146460), (1124, 109845), (1405, 87876), (1686, 73230), (2441, 50580), (2529, 48820), (2810, 43938), (3372, 36615), (4215, 29292), (4882, 25290), (5058, 24410), (5620, 21969), (7323, 16860), (8430, 14646), (9764, 12645), (10116, 12205)]