20457800

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{547}}^1$

素因数の和:591

約数の個数: 96

約数和(自身を含む): 55041120

約数和(自身を除く): 34583320

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 25, 34, 40, 44, 50, 55, 68, 85, 88, 100, 110, 136, 170, 187, 200, 220, 275, 340, 374, 425, 440, 547, 550, 680, 748, 850, 935, 1094, 1100, 1496, 1700, 1870, 2188, 2200, 2735, 3400, 3740, 4376, 4675, 5470, 6017, 7480, 9299, 9350, 10940, 12034, 13675, 18598, 18700, 21880, 24068, 27350, 30085, 37196, 37400, 46495, 48136, 54700, 60170, 74392, 92990, 102289, 109400, 120340, 150425, 185980, 204578, 232475, 240680, 300850, 371960, 409156, 464950, 511445, 601700, 818312, 929900, 1022890, 1203400, 1859800, 2045780, 2557225, 4091560, 5114450, 10228900, 20457800]

約数ペア:

[(1, 20457800), (2, 10228900), (4, 5114450), (5, 4091560), (8, 2557225), (10, 2045780), (11, 1859800), (17, 1203400), (20, 1022890), (22, 929900), (25, 818312), (34, 601700), (40, 511445), (44, 464950), (50, 409156), (55, 371960), (68, 300850), (85, 240680), (88, 232475), (100, 204578), (110, 185980), (136, 150425), (170, 120340), (187, 109400), (200, 102289), (220, 92990), (275, 74392), (340, 60170), (374, 54700), (425, 48136), (440, 46495), (547, 37400), (550, 37196), (680, 30085), (748, 27350), (850, 24068), (935, 21880), (1094, 18700), (1100, 18598), (1496, 13675), (1700, 12034), (1870, 10940), (2188, 9350), (2200, 9299), (2735, 7480), (3400, 6017), (3740, 5470), (4376, 4675)]