20129787585

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{146521}}^1$

素因数の和:146646

約数の個数: 48

約数和(自身を含む): 36206172288

約数和(自身を除く): 16076384703

約数列:

[1, 3, 5, 9, 15, 43, 45, 71, 129, 213, 215, 355, 387, 639, 645, 1065, 1935, 3053, 3195, 9159, 15265, 27477, 45795, 137385, 146521, 439563, 732605, 1318689, 2197815, 6300403, 6593445, 10402991, 18901209, 31208973, 31502015, 52014955, 56703627, 93626919, 94506045, 156044865, 283518135, 447328613, 468134595, 1341985839, 2236643065, 4025957517, 6709929195, 20129787585]

約数ペア:

[(1, 20129787585), (3, 6709929195), (5, 4025957517), (9, 2236643065), (15, 1341985839), (43, 468134595), (45, 447328613), (71, 283518135), (129, 156044865), (213, 94506045), (215, 93626919), (355, 56703627), (387, 52014955), (639, 31502015), (645, 31208973), (1065, 18901209), (1935, 10402991), (3053, 6593445), (3195, 6300403), (9159, 2197815), (15265, 1318689), (27477, 732605), (45795, 439563), (137385, 146521)]