215491680

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{263}}^1\times {\mathrm{569}}^1$

素因数の和:853

約数の個数: 144

約数和(自身を含む): 739458720

約数和(自身を除く): 523967040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 263, 288, 360, 480, 526, 569, 720, 789, 1052, 1138, 1315, 1440, 1578, 1707, 2104, 2276, 2367, 2630, 2845, 3156, 3414, 3945, 4208, 4552, 4734, 5121, 5260, 5690, 6312, 6828, 7890, 8416, 8535, 9104, 9468, 10242, 10520, 11380, 11835, 12624, 13656, 15780, 17070, 18208, 18936, 20484, 21040, 22760, 23670, 25248, 25605, 27312, 31560, 34140, 37872, 40968, 42080, 45520, 47340, 51210, 54624, 63120, 68280, 75744, 81936, 91040, 94680, 102420, 126240, 136560, 149647, 163872, 189360, 204840, 273120, 299294, 378720, 409680, 448941, 598588, 748235, 819360, 897882, 1197176, 1346823, 1496470, 1795764, 2244705, 2394352, 2693646, 2992940, 3591528, 4489410, 4788704, 5387292, 5985880, 6734115, 7183056, 8978820, 10774584, 11971760, 13468230, 14366112, 17957640, 21549168, 23943520, 26936460, 35915280, 43098336, 53872920, 71830560, 107745840, 215491680]

約数ペア:

[(1, 215491680), (2, 107745840), (3, 71830560), (4, 53872920), (5, 43098336), (6, 35915280), (8, 26936460), (9, 23943520), (10, 21549168), (12, 17957640), (15, 14366112), (16, 13468230), (18, 11971760), (20, 10774584), (24, 8978820), (30, 7183056), (32, 6734115), (36, 5985880), (40, 5387292), (45, 4788704), (48, 4489410), (60, 3591528), (72, 2992940), (80, 2693646), (90, 2394352), (96, 2244705), (120, 1795764), (144, 1496470), (160, 1346823), (180, 1197176), (240, 897882), (263, 819360), (288, 748235), (360, 598588), (480, 448941), (526, 409680), (569, 378720), (720, 299294), (789, 273120), (1052, 204840), (1138, 189360), (1315, 163872), (1440, 149647), (1578, 136560), (1707, 126240), (2104, 102420), (2276, 94680), (2367, 91040), (2630, 81936), (2845, 75744), (3156, 68280), (3414, 63120), (3945, 54624), (4208, 51210), (4552, 47340), (4734, 45520), (5121, 42080), (5260, 40968), (5690, 37872), (6312, 34140), (6828, 31560), (7890, 27312), (8416, 25605), (8535, 25248), (9104, 23670), (9468, 22760), (10242, 21040), (10520, 20484), (11380, 18936), (11835, 18208), (12624, 17070), (13656, 15780)]