40642520

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{1009}}^1$

素因数の和:1092

約数の個数: 64

約数和(自身を含む): 98172000

約数和(自身を除く): 57529480

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 53, 76, 95, 106, 152, 190, 212, 265, 380, 424, 530, 760, 1007, 1009, 1060, 2014, 2018, 2120, 4028, 4036, 5035, 5045, 8056, 8072, 10070, 10090, 19171, 20140, 20180, 38342, 40280, 40360, 53477, 76684, 95855, 106954, 153368, 191710, 213908, 267385, 383420, 427816, 534770, 766840, 1016063, 1069540, 2032126, 2139080, 4064252, 5080315, 8128504, 10160630, 20321260, 40642520]

約数ペア:

[(1, 40642520), (2, 20321260), (4, 10160630), (5, 8128504), (8, 5080315), (10, 4064252), (19, 2139080), (20, 2032126), (38, 1069540), (40, 1016063), (53, 766840), (76, 534770), (95, 427816), (106, 383420), (152, 267385), (190, 213908), (212, 191710), (265, 153368), (380, 106954), (424, 95855), (530, 76684), (760, 53477), (1007, 40360), (1009, 40280), (1060, 38342), (2014, 20180), (2018, 20140), (2120, 19171), (4028, 10090), (4036, 10070), (5035, 8072), (5045, 8056)]