20178750

素因数分解:

$2^1\times 3^1\times 5^4\times {\mathrm{5381}}^1$

素因数の和:5406

約数の個数: 40

約数和(自身を含む): 50440104

約数和(自身を除く): 30261354

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 125, 150, 250, 375, 625, 750, 1250, 1875, 3750, 5381, 10762, 16143, 26905, 32286, 53810, 80715, 134525, 161430, 269050, 403575, 672625, 807150, 1345250, 2017875, 3363125, 4035750, 6726250, 10089375, 20178750]

約数ペア:

[(1, 20178750), (2, 10089375), (3, 6726250), (5, 4035750), (6, 3363125), (10, 2017875), (15, 1345250), (25, 807150), (30, 672625), (50, 403575), (75, 269050), (125, 161430), (150, 134525), (250, 80715), (375, 53810), (625, 32286), (750, 26905), (1250, 16143), (1875, 10762), (3750, 5381)]