20581435

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{691}}^1$

素因数の和:763

約数の個数: 32

約数和(自身を含む): 30292992

約数和(自身を除く): 9711557

約数列:

[1, 5, 7, 23, 35, 37, 115, 161, 185, 259, 691, 805, 851, 1295, 3455, 4255, 4837, 5957, 15893, 24185, 25567, 29785, 79465, 111251, 127835, 178969, 556255, 588041, 894845, 2940205, 4116287, 20581435]

約数ペア:

[(1, 20581435), (5, 4116287), (7, 2940205), (23, 894845), (35, 588041), (37, 556255), (115, 178969), (161, 127835), (185, 111251), (259, 79465), (691, 29785), (805, 25567), (851, 24185), (1295, 15893), (3455, 5957), (4255, 4837)]