80827040

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{72167}}^1$

素因数の和:72189

約数の個数: 48

約数和(自身を含む): 218236032

約数和(自身を除く): 137408992

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 72167, 144334, 288668, 360835, 505169, 577336, 721670, 1010338, 1154672, 1443340, 2020676, 2309344, 2525845, 2886680, 4041352, 5051690, 5773360, 8082704, 10103380, 11546720, 16165408, 20206760, 40413520, 80827040]

約数ペア:

[(1, 80827040), (2, 40413520), (4, 20206760), (5, 16165408), (7, 11546720), (8, 10103380), (10, 8082704), (14, 5773360), (16, 5051690), (20, 4041352), (28, 2886680), (32, 2525845), (35, 2309344), (40, 2020676), (56, 1443340), (70, 1154672), (80, 1010338), (112, 721670), (140, 577336), (160, 505169), (224, 360835), (280, 288668), (560, 144334), (1120, 72167)]