1286947984

素因数分解:

$2^4\times 7^1\times {\mathrm{47}}^1\times {\mathrm{244481}}^1$

素因数の和:244543

約数の個数: 40

約数和(自身を含む): 2910313728

約数和(自身を除く): 1623365744

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 47, 56, 94, 112, 188, 329, 376, 658, 752, 1316, 2632, 5264, 244481, 488962, 977924, 1711367, 1955848, 3422734, 3911696, 6845468, 11490607, 13690936, 22981214, 27381872, 45962428, 80434249, 91924856, 160868498, 183849712, 321736996, 643473992, 1286947984]

約数ペア:

[(1, 1286947984), (2, 643473992), (4, 321736996), (7, 183849712), (8, 160868498), (14, 91924856), (16, 80434249), (28, 45962428), (47, 27381872), (56, 22981214), (94, 13690936), (112, 11490607), (188, 6845468), (329, 3911696), (376, 3422734), (658, 1955848), (752, 1711367), (1316, 977924), (2632, 488962), (5264, 244481)]