8118040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{367}}^1$

素因数の和:464

約数の個数: 64

約数和(自身を含む): 21196800

約数和(自身を除く): 13078760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 79, 140, 158, 280, 316, 367, 395, 553, 632, 734, 790, 1106, 1468, 1580, 1835, 2212, 2569, 2765, 2936, 3160, 3670, 4424, 5138, 5530, 7340, 10276, 11060, 12845, 14680, 20552, 22120, 25690, 28993, 51380, 57986, 102760, 115972, 144965, 202951, 231944, 289930, 405902, 579860, 811804, 1014755, 1159720, 1623608, 2029510, 4059020, 8118040]

約数ペア:

[(1, 8118040), (2, 4059020), (4, 2029510), (5, 1623608), (7, 1159720), (8, 1014755), (10, 811804), (14, 579860), (20, 405902), (28, 289930), (35, 231944), (40, 202951), (56, 144965), (70, 115972), (79, 102760), (140, 57986), (158, 51380), (280, 28993), (316, 25690), (367, 22120), (395, 20552), (553, 14680), (632, 12845), (734, 11060), (790, 10276), (1106, 7340), (1468, 5530), (1580, 5138), (1835, 4424), (2212, 3670), (2569, 3160), (2765, 2936)]