40402040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{313}}^1\times {\mathrm{461}}^1$

素因数の和:792

約数の個数: 64

約数和(自身を含む): 104448960

約数和(自身を除く): 64046920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 313, 461, 626, 922, 1252, 1565, 1844, 2191, 2305, 2504, 3130, 3227, 3688, 4382, 4610, 6260, 6454, 8764, 9220, 10955, 12520, 12908, 16135, 17528, 18440, 21910, 25816, 32270, 43820, 64540, 87640, 129080, 144293, 288586, 577172, 721465, 1010051, 1154344, 1442930, 2020102, 2885860, 4040204, 5050255, 5771720, 8080408, 10100510, 20201020, 40402040]

約数ペア:

[(1, 40402040), (2, 20201020), (4, 10100510), (5, 8080408), (7, 5771720), (8, 5050255), (10, 4040204), (14, 2885860), (20, 2020102), (28, 1442930), (35, 1154344), (40, 1010051), (56, 721465), (70, 577172), (140, 288586), (280, 144293), (313, 129080), (461, 87640), (626, 64540), (922, 43820), (1252, 32270), (1565, 25816), (1844, 21910), (2191, 18440), (2305, 17528), (2504, 16135), (3130, 12908), (3227, 12520), (3688, 10955), (4382, 9220), (4610, 8764), (6260, 6454)]