2013221990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{98639}}^1$

素因数の和:98816

約数の個数: 32

約数和(自身を含む): 3927450240

約数和(自身を除く): 1914228250

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 157, 314, 785, 1570, 2041, 4082, 10205, 20410, 98639, 197278, 493195, 986390, 1282307, 2564614, 6411535, 12823070, 15486323, 30972646, 77431615, 154863230, 201322199, 402644398, 1006610995, 2013221990]

約数ペア:

[(1, 2013221990), (2, 1006610995), (5, 402644398), (10, 201322199), (13, 154863230), (26, 77431615), (65, 30972646), (130, 15486323), (157, 12823070), (314, 6411535), (785, 2564614), (1570, 1282307), (2041, 986390), (4082, 493195), (10205, 197278), (20410, 98639)]