278330338

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{31393}}^1$

素因数の和:31450

約数の個数: 32

約数和(自身を含む): 506322432

約数和(自身を除く): 227992094

約数列:

[1, 2, 11, 13, 22, 26, 31, 62, 143, 286, 341, 403, 682, 806, 4433, 8866, 31393, 62786, 345323, 408109, 690646, 816218, 973183, 1946366, 4489199, 8978398, 10705013, 12651379, 21410026, 25302758, 139165169, 278330338]

約数ペア:

[(1, 278330338), (2, 139165169), (11, 25302758), (13, 21410026), (22, 12651379), (26, 10705013), (31, 8978398), (62, 4489199), (143, 1946366), (286, 973183), (341, 816218), (403, 690646), (682, 408109), (806, 345323), (4433, 62786), (8866, 31393)]