399913748

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{5701}}^1$

素因数の和:5808

約数の個数: 48

約数和(自身を含む): 804666240

約数和(自身を除く): 404752492

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 71, 76, 142, 247, 284, 494, 923, 988, 1349, 1846, 2698, 3692, 5396, 5701, 11402, 17537, 22804, 35074, 70148, 74113, 108319, 148226, 216638, 296452, 404771, 433276, 809542, 1408147, 1619084, 2816294, 5262023, 5632588, 7690649, 10524046, 15381298, 21048092, 30762596, 99978437, 199956874, 399913748]

約数ペア:

[(1, 399913748), (2, 199956874), (4, 99978437), (13, 30762596), (19, 21048092), (26, 15381298), (38, 10524046), (52, 7690649), (71, 5632588), (76, 5262023), (142, 2816294), (247, 1619084), (284, 1408147), (494, 809542), (923, 433276), (988, 404771), (1349, 296452), (1846, 216638), (2698, 148226), (3692, 108319), (5396, 74113), (5701, 70148), (11402, 35074), (17537, 22804)]