78138760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{9623}}^1$

素因数の和:9670

約数の個数: 64

約数和(自身を含む): 207878400

約数和(自身を除く): 129739640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 40, 56, 58, 70, 116, 140, 145, 203, 232, 280, 290, 406, 580, 812, 1015, 1160, 1624, 2030, 4060, 8120, 9623, 19246, 38492, 48115, 67361, 76984, 96230, 134722, 192460, 269444, 279067, 336805, 384920, 538888, 558134, 673610, 1116268, 1347220, 1395335, 1953469, 2232536, 2694440, 2790670, 3906938, 5581340, 7813876, 9767345, 11162680, 15627752, 19534690, 39069380, 78138760]

約数ペア:

[(1, 78138760), (2, 39069380), (4, 19534690), (5, 15627752), (7, 11162680), (8, 9767345), (10, 7813876), (14, 5581340), (20, 3906938), (28, 2790670), (29, 2694440), (35, 2232536), (40, 1953469), (56, 1395335), (58, 1347220), (70, 1116268), (116, 673610), (140, 558134), (145, 538888), (203, 384920), (232, 336805), (280, 279067), (290, 269444), (406, 192460), (580, 134722), (812, 96230), (1015, 76984), (1160, 67361), (1624, 48115), (2030, 38492), (4060, 19246), (8120, 9623)]