80303020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{18503}}^1$

素因数の和:18550

約数の個数: 48

約数和(自身を含む): 198955008

約数和(自身を除く): 118651988

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 18503, 37006, 74012, 92515, 129521, 185030, 259042, 370060, 518084, 573593, 647605, 1147186, 1295210, 2294372, 2590420, 2867965, 4015151, 5735930, 8030302, 11471860, 16060604, 20075755, 40151510, 80303020]

約数ペア:

[(1, 80303020), (2, 40151510), (4, 20075755), (5, 16060604), (7, 11471860), (10, 8030302), (14, 5735930), (20, 4015151), (28, 2867965), (31, 2590420), (35, 2294372), (62, 1295210), (70, 1147186), (124, 647605), (140, 573593), (155, 518084), (217, 370060), (310, 259042), (434, 185030), (620, 129521), (868, 92515), (1085, 74012), (2170, 37006), (4340, 18503)]