21172000

素因数分解:

$2^5\times 5^3\times {\mathrm{67}}^1\times {\mathrm{79}}^1$

素因数の和:171

約数の個数: 96

約数和(自身を含む): 53464320

約数和(自身を除く): 32292320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 67, 79, 80, 100, 125, 134, 158, 160, 200, 250, 268, 316, 335, 395, 400, 500, 536, 632, 670, 790, 800, 1000, 1072, 1264, 1340, 1580, 1675, 1975, 2000, 2144, 2528, 2680, 3160, 3350, 3950, 4000, 5293, 5360, 6320, 6700, 7900, 8375, 9875, 10586, 10720, 12640, 13400, 15800, 16750, 19750, 21172, 26465, 26800, 31600, 33500, 39500, 42344, 52930, 53600, 63200, 67000, 79000, 84688, 105860, 132325, 134000, 158000, 169376, 211720, 264650, 268000, 316000, 423440, 529300, 661625, 846880, 1058600, 1323250, 2117200, 2646500, 4234400, 5293000, 10586000, 21172000]

約数ペア:

[(1, 21172000), (2, 10586000), (4, 5293000), (5, 4234400), (8, 2646500), (10, 2117200), (16, 1323250), (20, 1058600), (25, 846880), (32, 661625), (40, 529300), (50, 423440), (67, 316000), (79, 268000), (80, 264650), (100, 211720), (125, 169376), (134, 158000), (158, 134000), (160, 132325), (200, 105860), (250, 84688), (268, 79000), (316, 67000), (335, 63200), (395, 53600), (400, 52930), (500, 42344), (536, 39500), (632, 33500), (670, 31600), (790, 26800), (800, 26465), (1000, 21172), (1072, 19750), (1264, 16750), (1340, 15800), (1580, 13400), (1675, 12640), (1975, 10720), (2000, 10586), (2144, 9875), (2528, 8375), (2680, 7900), (3160, 6700), (3350, 6320), (3950, 5360), (4000, 5293)]