2558840

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1$

素因数の和:152

約数の個数: 64

約数和(自身を含む): 6298560

約数和(自身を除く): 3739720

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 53, 68, 71, 85, 106, 136, 142, 170, 212, 265, 284, 340, 355, 424, 530, 568, 680, 710, 901, 1060, 1207, 1420, 1802, 2120, 2414, 2840, 3604, 3763, 4505, 4828, 6035, 7208, 7526, 9010, 9656, 12070, 15052, 18020, 18815, 24140, 30104, 36040, 37630, 48280, 63971, 75260, 127942, 150520, 255884, 319855, 511768, 639710, 1279420, 2558840]

約数ペア:

[(1, 2558840), (2, 1279420), (4, 639710), (5, 511768), (8, 319855), (10, 255884), (17, 150520), (20, 127942), (34, 75260), (40, 63971), (53, 48280), (68, 37630), (71, 36040), (85, 30104), (106, 24140), (136, 18815), (142, 18020), (170, 15052), (212, 12070), (265, 9656), (284, 9010), (340, 7526), (355, 7208), (424, 6035), (530, 4828), (568, 4505), (680, 3763), (710, 3604), (901, 2840), (1060, 2414), (1207, 2120), (1420, 1802)]