20846380

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{331}}^1$

素因数の和:454

約数の個数: 48

約数和(自身を含む): 45513216

約数和(自身を除く): 24666836

約数列:

[1, 2, 4, 5, 10, 20, 47, 67, 94, 134, 188, 235, 268, 331, 335, 470, 662, 670, 940, 1324, 1340, 1655, 3149, 3310, 6298, 6620, 12596, 15557, 15745, 22177, 31114, 31490, 44354, 62228, 62980, 77785, 88708, 110885, 155570, 221770, 311140, 443540, 1042319, 2084638, 4169276, 5211595, 10423190, 20846380]

約数ペア:

[(1, 20846380), (2, 10423190), (4, 5211595), (5, 4169276), (10, 2084638), (20, 1042319), (47, 443540), (67, 311140), (94, 221770), (134, 155570), (188, 110885), (235, 88708), (268, 77785), (331, 62980), (335, 62228), (470, 44354), (662, 31490), (670, 31114), (940, 22177), (1324, 15745), (1340, 15557), (1655, 12596), (3149, 6620), (3310, 6298)]