40117840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1009}}^1$

素因数の和:1100

約数の個数: 80

約数和(自身を含む): 108207360

約数和(自身を除く): 68089520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 71, 80, 112, 140, 142, 280, 284, 355, 497, 560, 568, 710, 994, 1009, 1136, 1420, 1988, 2018, 2485, 2840, 3976, 4036, 4970, 5045, 5680, 7063, 7952, 8072, 9940, 10090, 14126, 16144, 19880, 20180, 28252, 35315, 39760, 40360, 56504, 70630, 71639, 80720, 113008, 141260, 143278, 282520, 286556, 358195, 501473, 565040, 573112, 716390, 1002946, 1146224, 1432780, 2005892, 2507365, 2865560, 4011784, 5014730, 5731120, 8023568, 10029460, 20058920, 40117840]

約数ペア:

[(1, 40117840), (2, 20058920), (4, 10029460), (5, 8023568), (7, 5731120), (8, 5014730), (10, 4011784), (14, 2865560), (16, 2507365), (20, 2005892), (28, 1432780), (35, 1146224), (40, 1002946), (56, 716390), (70, 573112), (71, 565040), (80, 501473), (112, 358195), (140, 286556), (142, 282520), (280, 143278), (284, 141260), (355, 113008), (497, 80720), (560, 71639), (568, 70630), (710, 56504), (994, 40360), (1009, 39760), (1136, 35315), (1420, 28252), (1988, 20180), (2018, 19880), (2485, 16144), (2840, 14126), (3976, 10090), (4036, 9940), (4970, 8072), (5045, 7952), (5680, 7063)]