245758140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{821}}^1\times {\mathrm{1663}}^1$

素因数の和:2499

約数の個数: 72

約数和(自身を含む): 746823168

約数和(自身を除く): 501065028

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 821, 1642, 1663, 2463, 3284, 3326, 4105, 4926, 4989, 6652, 7389, 8210, 8315, 9852, 9978, 12315, 14778, 14967, 16420, 16630, 19956, 24630, 24945, 29556, 29934, 33260, 36945, 49260, 49890, 59868, 73890, 74835, 99780, 147780, 149670, 299340, 1365323, 2730646, 4095969, 5461292, 6826615, 8191938, 12287907, 13653230, 16383876, 20479845, 24575814, 27306460, 40959690, 49151628, 61439535, 81919380, 122879070, 245758140]

約数ペア:

[(1, 245758140), (2, 122879070), (3, 81919380), (4, 61439535), (5, 49151628), (6, 40959690), (9, 27306460), (10, 24575814), (12, 20479845), (15, 16383876), (18, 13653230), (20, 12287907), (30, 8191938), (36, 6826615), (45, 5461292), (60, 4095969), (90, 2730646), (180, 1365323), (821, 299340), (1642, 149670), (1663, 147780), (2463, 99780), (3284, 74835), (3326, 73890), (4105, 59868), (4926, 49890), (4989, 49260), (6652, 36945), (7389, 33260), (8210, 29934), (8315, 29556), (9852, 24945), (9978, 24630), (12315, 19956), (14778, 16630), (14967, 16420)]