201008180

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{151}}^1\times {\mathrm{659}}^1$

素因数の和:920

約数の個数: 48

約数和(自身を含む): 429770880

約数和(自身を除く): 228762700

約数列:

[1, 2, 4, 5, 10, 20, 101, 151, 202, 302, 404, 505, 604, 659, 755, 1010, 1318, 1510, 2020, 2636, 3020, 3295, 6590, 13180, 15251, 30502, 61004, 66559, 76255, 99509, 133118, 152510, 199018, 266236, 305020, 332795, 398036, 497545, 665590, 995090, 1331180, 1990180, 10050409, 20100818, 40201636, 50252045, 100504090, 201008180]

約数ペア:

[(1, 201008180), (2, 100504090), (4, 50252045), (5, 40201636), (10, 20100818), (20, 10050409), (101, 1990180), (151, 1331180), (202, 995090), (302, 665590), (404, 497545), (505, 398036), (604, 332795), (659, 305020), (755, 266236), (1010, 199018), (1318, 152510), (1510, 133118), (2020, 99509), (2636, 76255), (3020, 66559), (3295, 61004), (6590, 30502), (13180, 15251)]