19904270

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{1129}}^1$

素因数の和:1220

約数の個数: 32

約数和(自身を含む): 37588320

約数和(自身を除く): 17684050

約数列:

[1, 2, 5, 10, 41, 43, 82, 86, 205, 215, 410, 430, 1129, 1763, 2258, 3526, 5645, 8815, 11290, 17630, 46289, 48547, 92578, 97094, 231445, 242735, 462890, 485470, 1990427, 3980854, 9952135, 19904270]

約数ペア:

[(1, 19904270), (2, 9952135), (5, 3980854), (10, 1990427), (41, 485470), (43, 462890), (82, 242735), (86, 231445), (205, 97094), (215, 92578), (410, 48547), (430, 46289), (1129, 17630), (1763, 11290), (2258, 8815), (3526, 5645)]