20598890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{821}}^1$

素因数の和:1034

約数の個数: 32

約数和(自身を含む): 40185936

約数和(自身を除く): 19587046

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 193, 386, 821, 965, 1642, 1930, 2509, 4105, 5018, 8210, 10673, 12545, 21346, 25090, 53365, 106730, 158453, 316906, 792265, 1584530, 2059889, 4119778, 10299445, 20598890]

約数ペア:

[(1, 20598890), (2, 10299445), (5, 4119778), (10, 2059889), (13, 1584530), (26, 792265), (65, 316906), (130, 158453), (193, 106730), (386, 53365), (821, 25090), (965, 21346), (1642, 12545), (1930, 10673), (2509, 8210), (4105, 5018)]