7953140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^3\times {\mathrm{181}}^1$

素因数の和:229

約数の個数: 48

約数和(自身を含む): 18192720

約数和(自身を除く): 10239580

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 181, 260, 338, 362, 676, 724, 845, 905, 1690, 1810, 2197, 2353, 3380, 3620, 4394, 4706, 8788, 9412, 10985, 11765, 21970, 23530, 30589, 43940, 47060, 61178, 122356, 152945, 305890, 397657, 611780, 795314, 1590628, 1988285, 3976570, 7953140]

約数ペア:

[(1, 7953140), (2, 3976570), (4, 1988285), (5, 1590628), (10, 795314), (13, 611780), (20, 397657), (26, 305890), (52, 152945), (65, 122356), (130, 61178), (169, 47060), (181, 43940), (260, 30589), (338, 23530), (362, 21970), (676, 11765), (724, 10985), (845, 9412), (905, 8788), (1690, 4706), (1810, 4394), (2197, 3620), (2353, 3380)]