27878890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{11287}}^1$

素因数の和:11326

約数の個数: 32

約数和(自身を含む): 56891520

約数和(自身を除く): 29012630

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 190, 247, 494, 1235, 2470, 11287, 22574, 56435, 112870, 146731, 214453, 293462, 428906, 733655, 1072265, 1467310, 2144530, 2787889, 5575778, 13939445, 27878890]

約数ペア:

[(1, 27878890), (2, 13939445), (5, 5575778), (10, 2787889), (13, 2144530), (19, 1467310), (26, 1072265), (38, 733655), (65, 428906), (95, 293462), (130, 214453), (190, 146731), (247, 112870), (494, 56435), (1235, 22574), (2470, 11287)]