20704260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{163}}^1$

素因数の和:277

約数の個数: 96

約数和(自身を含む): 61165440

約数和(自身を除く): 40461180

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 29, 30, 58, 60, 73, 87, 116, 145, 146, 163, 174, 219, 290, 292, 326, 348, 365, 435, 438, 489, 580, 652, 730, 815, 870, 876, 978, 1095, 1460, 1630, 1740, 1956, 2117, 2190, 2445, 3260, 4234, 4380, 4727, 4890, 6351, 8468, 9454, 9780, 10585, 11899, 12702, 14181, 18908, 21170, 23635, 23798, 25404, 28362, 31755, 35697, 42340, 47270, 47596, 56724, 59495, 63510, 70905, 71394, 94540, 118990, 127020, 141810, 142788, 178485, 237980, 283620, 345071, 356970, 690142, 713940, 1035213, 1380284, 1725355, 2070426, 3450710, 4140852, 5176065, 6901420, 10352130, 20704260]

約数ペア:

[(1, 20704260), (2, 10352130), (3, 6901420), (4, 5176065), (5, 4140852), (6, 3450710), (10, 2070426), (12, 1725355), (15, 1380284), (20, 1035213), (29, 713940), (30, 690142), (58, 356970), (60, 345071), (73, 283620), (87, 237980), (116, 178485), (145, 142788), (146, 141810), (163, 127020), (174, 118990), (219, 94540), (290, 71394), (292, 70905), (326, 63510), (348, 59495), (365, 56724), (435, 47596), (438, 47270), (489, 42340), (580, 35697), (652, 31755), (730, 28362), (815, 25404), (870, 23798), (876, 23635), (978, 21170), (1095, 18908), (1460, 14181), (1630, 12702), (1740, 11899), (1956, 10585), (2117, 9780), (2190, 9454), (2445, 8468), (3260, 6351), (4234, 4890), (4380, 4727)]