40408520

素因数分解:

$2^3\times 5^1\times {\mathrm{739}}^1\times {\mathrm{1367}}^1$

素因数の和:2117

約数の個数: 32

約数和(自身を含む): 91108800

約数和(自身を除く): 50700280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 739, 1367, 1478, 2734, 2956, 3695, 5468, 5912, 6835, 7390, 10936, 13670, 14780, 27340, 29560, 54680, 1010213, 2020426, 4040852, 5051065, 8081704, 10102130, 20204260, 40408520]

約数ペア:

[(1, 40408520), (2, 20204260), (4, 10102130), (5, 8081704), (8, 5051065), (10, 4040852), (20, 2020426), (40, 1010213), (739, 54680), (1367, 29560), (1478, 27340), (2734, 14780), (2956, 13670), (3695, 10936), (5468, 7390), (5912, 6835)]