8139880

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{4153}}^1$

素因数の和:4178

約数の個数: 48

約数和(自身を含む): 21310020

約数和(自身を除く): 13170140

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 4153, 8306, 16612, 20765, 29071, 33224, 41530, 58142, 83060, 116284, 145355, 166120, 203497, 232568, 290710, 406994, 581420, 813988, 1017485, 1162840, 1627976, 2034970, 4069940, 8139880]

約数ペア:

[(1, 8139880), (2, 4069940), (4, 2034970), (5, 1627976), (7, 1162840), (8, 1017485), (10, 813988), (14, 581420), (20, 406994), (28, 290710), (35, 232568), (40, 203497), (49, 166120), (56, 145355), (70, 116284), (98, 83060), (140, 58142), (196, 41530), (245, 33224), (280, 29071), (392, 20765), (490, 16612), (980, 8306), (1960, 4153)]