20949420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{3457}}^1$

素因数の和:3570

約数の個数: 48

約数和(自身を含む): 59256288

約数和(自身を除く): 38306868

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 101, 202, 303, 404, 505, 606, 1010, 1212, 1515, 2020, 3030, 3457, 6060, 6914, 10371, 13828, 17285, 20742, 34570, 41484, 51855, 69140, 103710, 207420, 349157, 698314, 1047471, 1396628, 1745785, 2094942, 3491570, 4189884, 5237355, 6983140, 10474710, 20949420]

約数ペア:

[(1, 20949420), (2, 10474710), (3, 6983140), (4, 5237355), (5, 4189884), (6, 3491570), (10, 2094942), (12, 1745785), (15, 1396628), (20, 1047471), (30, 698314), (60, 349157), (101, 207420), (202, 103710), (303, 69140), (404, 51855), (505, 41484), (606, 34570), (1010, 20742), (1212, 17285), (1515, 13828), (2020, 10371), (3030, 6914), (3457, 6060)]