85408040

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{1031}}^1$

素因数の和:1170

約数の個数: 64

約数和(自身を含む): 204336000

約数和(自身を除く): 118927960

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 109, 152, 190, 218, 380, 436, 545, 760, 872, 1031, 1090, 2062, 2071, 2180, 4124, 4142, 4360, 5155, 8248, 8284, 10310, 10355, 16568, 19589, 20620, 20710, 39178, 41240, 41420, 78356, 82840, 97945, 112379, 156712, 195890, 224758, 391780, 449516, 561895, 783560, 899032, 1123790, 2135201, 2247580, 4270402, 4495160, 8540804, 10676005, 17081608, 21352010, 42704020, 85408040]

約数ペア:

[(1, 85408040), (2, 42704020), (4, 21352010), (5, 17081608), (8, 10676005), (10, 8540804), (19, 4495160), (20, 4270402), (38, 2247580), (40, 2135201), (76, 1123790), (95, 899032), (109, 783560), (152, 561895), (190, 449516), (218, 391780), (380, 224758), (436, 195890), (545, 156712), (760, 112379), (872, 97945), (1031, 82840), (1090, 78356), (2062, 41420), (2071, 41240), (2180, 39178), (4124, 20710), (4142, 20620), (4360, 19589), (5155, 16568), (8248, 10355), (8284, 10310)]