42713420

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1\times {\mathrm{223}}^1$

素因数の和:450

約数の個数: 48

約数和(自身を含む): 92160768

約数和(自身を除く): 49447348

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 157, 223, 244, 305, 314, 446, 610, 628, 785, 892, 1115, 1220, 1570, 2230, 3140, 4460, 9577, 13603, 19154, 27206, 35011, 38308, 47885, 54412, 68015, 70022, 95770, 136030, 140044, 175055, 191540, 272060, 350110, 700220, 2135671, 4271342, 8542684, 10678355, 21356710, 42713420]

約数ペア:

[(1, 42713420), (2, 21356710), (4, 10678355), (5, 8542684), (10, 4271342), (20, 2135671), (61, 700220), (122, 350110), (157, 272060), (223, 191540), (244, 175055), (305, 140044), (314, 136030), (446, 95770), (610, 70022), (628, 68015), (785, 54412), (892, 47885), (1115, 38308), (1220, 35011), (1570, 27206), (2230, 19154), (3140, 13603), (4460, 9577)]