20578710

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{457}}^1$

素因数の和:565

約数の個数: 64

約数和(自身を含む): 52761600

約数和(自身を除く): 32182890

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 30, 38, 57, 79, 95, 114, 158, 190, 237, 285, 395, 457, 474, 570, 790, 914, 1185, 1371, 1501, 2285, 2370, 2742, 3002, 4503, 4570, 6855, 7505, 8683, 9006, 13710, 15010, 17366, 22515, 26049, 36103, 43415, 45030, 52098, 72206, 86830, 108309, 130245, 180515, 216618, 260490, 361030, 541545, 685957, 1083090, 1371914, 2057871, 3429785, 4115742, 6859570, 10289355, 20578710]

約数ペア:

[(1, 20578710), (2, 10289355), (3, 6859570), (5, 4115742), (6, 3429785), (10, 2057871), (15, 1371914), (19, 1083090), (30, 685957), (38, 541545), (57, 361030), (79, 260490), (95, 216618), (114, 180515), (158, 130245), (190, 108309), (237, 86830), (285, 72206), (395, 52098), (457, 45030), (474, 43415), (570, 36103), (790, 26049), (914, 22515), (1185, 17366), (1371, 15010), (1501, 13710), (2285, 9006), (2370, 8683), (2742, 7505), (3002, 6855), (4503, 4570)]