4378020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{557}}^1$

素因数の和:700

約数の個数: 48

約数和(自身を含む): 12374208

約数和(自身を除く): 7996188

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 131, 262, 393, 524, 557, 655, 786, 1114, 1310, 1572, 1671, 1965, 2228, 2620, 2785, 3342, 3930, 5570, 6684, 7860, 8355, 11140, 16710, 33420, 72967, 145934, 218901, 291868, 364835, 437802, 729670, 875604, 1094505, 1459340, 2189010, 4378020]

約数ペア:

[(1, 4378020), (2, 2189010), (3, 1459340), (4, 1094505), (5, 875604), (6, 729670), (10, 437802), (12, 364835), (15, 291868), (20, 218901), (30, 145934), (60, 72967), (131, 33420), (262, 16710), (393, 11140), (524, 8355), (557, 7860), (655, 6684), (786, 5570), (1114, 3930), (1310, 3342), (1572, 2785), (1671, 2620), (1965, 2228)]