399440816

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{14869}}^1$

素因数の和:14973

約数の個数: 40

約数和(自身を含む): 818682720

約数和(自身を除く): 419241904

約数列:

[1, 2, 4, 8, 16, 23, 46, 73, 92, 146, 184, 292, 368, 584, 1168, 1679, 3358, 6716, 13432, 14869, 26864, 29738, 59476, 118952, 237904, 341987, 683974, 1085437, 1367948, 2170874, 2735896, 4341748, 5471792, 8683496, 17366992, 24965051, 49930102, 99860204, 199720408, 399440816]

約数ペア:

[(1, 399440816), (2, 199720408), (4, 99860204), (8, 49930102), (16, 24965051), (23, 17366992), (46, 8683496), (73, 5471792), (92, 4341748), (146, 2735896), (184, 2170874), (292, 1367948), (368, 1085437), (584, 683974), (1168, 341987), (1679, 237904), (3358, 118952), (6716, 59476), (13432, 29738), (14869, 26864)]