78818840

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{757}}^1$

素因数の和:924

約数の個数: 64

約数和(自身を含む): 188287200

約数和(自身を除く): 109468360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 137, 152, 190, 274, 380, 548, 685, 757, 760, 1096, 1370, 1514, 2603, 2740, 3028, 3785, 5206, 5480, 6056, 7570, 10412, 13015, 14383, 15140, 20824, 26030, 28766, 30280, 52060, 57532, 71915, 103709, 104120, 115064, 143830, 207418, 287660, 414836, 518545, 575320, 829672, 1037090, 1970471, 2074180, 3940942, 4148360, 7881884, 9852355, 15763768, 19704710, 39409420, 78818840]

約数ペア:

[(1, 78818840), (2, 39409420), (4, 19704710), (5, 15763768), (8, 9852355), (10, 7881884), (19, 4148360), (20, 3940942), (38, 2074180), (40, 1970471), (76, 1037090), (95, 829672), (137, 575320), (152, 518545), (190, 414836), (274, 287660), (380, 207418), (548, 143830), (685, 115064), (757, 104120), (760, 103709), (1096, 71915), (1370, 57532), (1514, 52060), (2603, 30280), (2740, 28766), (3028, 26030), (3785, 20824), (5206, 15140), (5480, 14383), (6056, 13015), (7570, 10412)]