397894140

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{105263}}^1$

素因数の和:105288

約数の個数: 96

約数和(自身を含む): 1414748160

約数和(自身を除く): 1016854020

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 84, 90, 105, 108, 126, 135, 140, 180, 189, 210, 252, 270, 315, 378, 420, 540, 630, 756, 945, 1260, 1890, 3780, 105263, 210526, 315789, 421052, 526315, 631578, 736841, 947367, 1052630, 1263156, 1473682, 1578945, 1894734, 2105260, 2210523, 2842101, 2947364, 3157890, 3684205, 3789468, 4421046, 4736835, 5684202, 6315780, 6631569, 7368410, 8842092, 9473670, 11052615, 11368404, 13263138, 14210505, 14736820, 18947340, 19894707, 22105230, 26526276, 28421010, 33157845, 39789414, 44210460, 56842020, 66315690, 79578828, 99473535, 132631380, 198947070, 397894140]

約数ペア:

[(1, 397894140), (2, 198947070), (3, 132631380), (4, 99473535), (5, 79578828), (6, 66315690), (7, 56842020), (9, 44210460), (10, 39789414), (12, 33157845), (14, 28421010), (15, 26526276), (18, 22105230), (20, 19894707), (21, 18947340), (27, 14736820), (28, 14210505), (30, 13263138), (35, 11368404), (36, 11052615), (42, 9473670), (45, 8842092), (54, 7368410), (60, 6631569), (63, 6315780), (70, 5684202), (84, 4736835), (90, 4421046), (105, 3789468), (108, 3684205), (126, 3157890), (135, 2947364), (140, 2842101), (180, 2210523), (189, 2105260), (210, 1894734), (252, 1578945), (270, 1473682), (315, 1263156), (378, 1052630), (420, 947367), (540, 736841), (630, 631578), (756, 526315), (945, 421052), (1260, 315789), (1890, 210526), (3780, 105263)]