155038640

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{3931}}^1$

素因数の和:3990

約数の個数: 80

約数和(自身を含む): 394930080

約数和(自身を除く): 239891440

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 29, 34, 40, 58, 68, 80, 85, 116, 136, 145, 170, 232, 272, 290, 340, 464, 493, 580, 680, 986, 1160, 1360, 1972, 2320, 2465, 3931, 3944, 4930, 7862, 7888, 9860, 15724, 19655, 19720, 31448, 39310, 39440, 62896, 66827, 78620, 113999, 133654, 157240, 227998, 267308, 314480, 334135, 455996, 534616, 569995, 668270, 911992, 1069232, 1139990, 1336540, 1823984, 1937983, 2279980, 2673080, 3875966, 4559960, 5346160, 7751932, 9119920, 9689915, 15503864, 19379830, 31007728, 38759660, 77519320, 155038640]

約数ペア:

[(1, 155038640), (2, 77519320), (4, 38759660), (5, 31007728), (8, 19379830), (10, 15503864), (16, 9689915), (17, 9119920), (20, 7751932), (29, 5346160), (34, 4559960), (40, 3875966), (58, 2673080), (68, 2279980), (80, 1937983), (85, 1823984), (116, 1336540), (136, 1139990), (145, 1069232), (170, 911992), (232, 668270), (272, 569995), (290, 534616), (340, 455996), (464, 334135), (493, 314480), (580, 267308), (680, 227998), (986, 157240), (1160, 133654), (1360, 113999), (1972, 78620), (2320, 66827), (2465, 62896), (3931, 39440), (3944, 39310), (4930, 31448), (7862, 19720), (7888, 19655), (9860, 15724)]