19850870

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{4127}}^1$

素因数の和:4184

約数の個数: 32

約数和(自身を含む): 39529728

約数和(自身を除く): 19678858

約数列:

[1, 2, 5, 10, 13, 26, 37, 65, 74, 130, 185, 370, 481, 962, 2405, 4127, 4810, 8254, 20635, 41270, 53651, 107302, 152699, 268255, 305398, 536510, 763495, 1526990, 1985087, 3970174, 9925435, 19850870]

約数ペア:

[(1, 19850870), (2, 9925435), (5, 3970174), (10, 1985087), (13, 1526990), (26, 763495), (37, 536510), (65, 305398), (74, 268255), (130, 152699), (185, 107302), (370, 53651), (481, 41270), (962, 20635), (2405, 8254), (4127, 4810)]