280888582

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{563}}^1\times {\mathrm{619}}^1$

素因数の和:1228

約数の個数: 32

約数和(自身を含む): 469969920

約数和(自身を除く): 189081338

約数列:

[1, 2, 13, 26, 31, 62, 403, 563, 619, 806, 1126, 1238, 7319, 8047, 14638, 16094, 17453, 19189, 34906, 38378, 226889, 249457, 348497, 453778, 498914, 696994, 4530461, 9060922, 10803407, 21606814, 140444291, 280888582]

約数ペア:

[(1, 280888582), (2, 140444291), (13, 21606814), (26, 10803407), (31, 9060922), (62, 4530461), (403, 696994), (563, 498914), (619, 453778), (806, 348497), (1126, 249457), (1238, 226889), (7319, 38378), (8047, 34906), (14638, 19189), (16094, 17453)]