20295100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{367}}^1$

素因数の和:467

約数の個数: 72

約数和(自身を含む): 51107840

約数和(自身を除く): 30812740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 79, 100, 140, 158, 175, 316, 350, 367, 395, 553, 700, 734, 790, 1106, 1468, 1580, 1835, 1975, 2212, 2569, 2765, 3670, 3950, 5138, 5530, 7340, 7900, 9175, 10276, 11060, 12845, 13825, 18350, 25690, 27650, 28993, 36700, 51380, 55300, 57986, 64225, 115972, 128450, 144965, 202951, 256900, 289930, 405902, 579860, 724825, 811804, 1014755, 1449650, 2029510, 2899300, 4059020, 5073775, 10147550, 20295100]

約数ペア:

[(1, 20295100), (2, 10147550), (4, 5073775), (5, 4059020), (7, 2899300), (10, 2029510), (14, 1449650), (20, 1014755), (25, 811804), (28, 724825), (35, 579860), (50, 405902), (70, 289930), (79, 256900), (100, 202951), (140, 144965), (158, 128450), (175, 115972), (316, 64225), (350, 57986), (367, 55300), (395, 51380), (553, 36700), (700, 28993), (734, 27650), (790, 25690), (1106, 18350), (1468, 13825), (1580, 12845), (1835, 11060), (1975, 10276), (2212, 9175), (2569, 7900), (2765, 7340), (3670, 5530), (3950, 5138)]