81405550

素因数分解:

$2^1\times 5^2\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{557}}^1$

素因数の和:685

約数の個数: 48

約数和(自身を含む): 157757760

約数和(自身を除く): 76352210

約数列:

[1, 2, 5, 10, 25, 37, 50, 74, 79, 158, 185, 370, 395, 557, 790, 925, 1114, 1850, 1975, 2785, 2923, 3950, 5570, 5846, 13925, 14615, 20609, 27850, 29230, 41218, 44003, 73075, 88006, 103045, 146150, 206090, 220015, 440030, 515225, 1030450, 1100075, 1628111, 2200150, 3256222, 8140555, 16281110, 40702775, 81405550]

約数ペア:

[(1, 81405550), (2, 40702775), (5, 16281110), (10, 8140555), (25, 3256222), (37, 2200150), (50, 1628111), (74, 1100075), (79, 1030450), (158, 515225), (185, 440030), (370, 220015), (395, 206090), (557, 146150), (790, 103045), (925, 88006), (1114, 73075), (1850, 44003), (1975, 41218), (2785, 29230), (2923, 27850), (3950, 20609), (5570, 14615), (5846, 13925)]