817400

素因数分解:

$2^3\times 5^2\times {\mathrm{61}}^1\times {\mathrm{67}}^1$

素因数の和:144

約数の個数: 48

約数和(自身を含む): 1960440

約数和(自身を除く): 1143040

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 61, 67, 100, 122, 134, 200, 244, 268, 305, 335, 488, 536, 610, 670, 1220, 1340, 1525, 1675, 2440, 2680, 3050, 3350, 4087, 6100, 6700, 8174, 12200, 13400, 16348, 20435, 32696, 40870, 81740, 102175, 163480, 204350, 408700, 817400]

約数ペア:

[(1, 817400), (2, 408700), (4, 204350), (5, 163480), (8, 102175), (10, 81740), (20, 40870), (25, 32696), (40, 20435), (50, 16348), (61, 13400), (67, 12200), (100, 8174), (122, 6700), (134, 6100), (200, 4087), (244, 3350), (268, 3050), (305, 2680), (335, 2440), (488, 1675), (536, 1525), (610, 1340), (670, 1220)]