66640840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^2\times {\mathrm{283}}^1$

素因数の和:359

約数の個数: 96

約数和(自身を含む): 178102080

約数和(自身を除く): 111461240

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, 283, 290, 406, 566, 580, 812, 841, 1015, 1132, 1160, 1415, 1624, 1682, 1981, 2030, 2264, 2830, 3364, 3962, 4060, 4205, 5660, 5887, 6728, 7924, 8120, 8207, 8410, 9905, 11320, 11774, 15848, 16414, 16820, 19810, 23548, 29435, 32828, 33640, 39620, 41035, 47096, 57449, 58870, 65656, 79240, 82070, 114898, 117740, 164140, 229796, 235480, 238003, 287245, 328280, 459592, 476006, 574490, 952012, 1148980, 1190015, 1666021, 1904024, 2297960, 2380030, 3332042, 4760060, 6664084, 8330105, 9520120, 13328168, 16660210, 33320420, 66640840]

約数ペア:

[(1, 66640840), (2, 33320420), (4, 16660210), (5, 13328168), (7, 9520120), (8, 8330105), (10, 6664084), (14, 4760060), (20, 3332042), (28, 2380030), (29, 2297960), (35, 1904024), (40, 1666021), (56, 1190015), (58, 1148980), (70, 952012), (116, 574490), (140, 476006), (145, 459592), (203, 328280), (232, 287245), (280, 238003), (283, 235480), (290, 229796), (406, 164140), (566, 117740), (580, 114898), (812, 82070), (841, 79240), (1015, 65656), (1132, 58870), (1160, 57449), (1415, 47096), (1624, 41035), (1682, 39620), (1981, 33640), (2030, 32828), (2264, 29435), (2830, 23548), (3364, 19810), (3962, 16820), (4060, 16414), (4205, 15848), (5660, 11774), (5887, 11320), (6728, 9905), (7924, 8410), (8120, 8207)]