1312520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1$

素因数の和:198

約数の個数: 64

約数和(自身を含む): 3412800

約数和(自身を除く): 2100280

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 38, 40, 44, 55, 76, 88, 95, 110, 152, 157, 190, 209, 220, 314, 380, 418, 440, 628, 760, 785, 836, 1045, 1256, 1570, 1672, 1727, 2090, 2983, 3140, 3454, 4180, 5966, 6280, 6908, 8360, 8635, 11932, 13816, 14915, 17270, 23864, 29830, 32813, 34540, 59660, 65626, 69080, 119320, 131252, 164065, 262504, 328130, 656260, 1312520]

約数ペア:

[(1, 1312520), (2, 656260), (4, 328130), (5, 262504), (8, 164065), (10, 131252), (11, 119320), (19, 69080), (20, 65626), (22, 59660), (38, 34540), (40, 32813), (44, 29830), (55, 23864), (76, 17270), (88, 14915), (95, 13816), (110, 11932), (152, 8635), (157, 8360), (190, 6908), (209, 6280), (220, 5966), (314, 4180), (380, 3454), (418, 3140), (440, 2983), (628, 2090), (760, 1727), (785, 1672), (836, 1570), (1045, 1256)]