217145880

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{28723}}^1$

素因数の和:28750

約数の個数: 128

約数和(自身を含む): 827251200

約数和(自身を除く): 610105320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 84, 90, 105, 108, 120, 126, 135, 140, 168, 180, 189, 210, 216, 252, 270, 280, 315, 360, 378, 420, 504, 540, 630, 756, 840, 945, 1080, 1260, 1512, 1890, 2520, 3780, 7560, 28723, 57446, 86169, 114892, 143615, 172338, 201061, 229784, 258507, 287230, 344676, 402122, 430845, 517014, 574460, 603183, 689352, 775521, 804244, 861690, 1005305, 1034028, 1148920, 1206366, 1292535, 1551042, 1608488, 1723380, 1809549, 2010610, 2068056, 2412732, 2585070, 3015915, 3102084, 3446760, 3619098, 3877605, 4021220, 4825464, 5170140, 5428647, 6031830, 6204168, 7238196, 7755210, 8042440, 9047745, 10340280, 10857294, 12063660, 14476392, 15510420, 18095490, 21714588, 24127320, 27143235, 31020840, 36190980, 43429176, 54286470, 72381960, 108572940, 217145880]

約数ペア:

[(1, 217145880), (2, 108572940), (3, 72381960), (4, 54286470), (5, 43429176), (6, 36190980), (7, 31020840), (8, 27143235), (9, 24127320), (10, 21714588), (12, 18095490), (14, 15510420), (15, 14476392), (18, 12063660), (20, 10857294), (21, 10340280), (24, 9047745), (27, 8042440), (28, 7755210), (30, 7238196), (35, 6204168), (36, 6031830), (40, 5428647), (42, 5170140), (45, 4825464), (54, 4021220), (56, 3877605), (60, 3619098), (63, 3446760), (70, 3102084), (72, 3015915), (84, 2585070), (90, 2412732), (105, 2068056), (108, 2010610), (120, 1809549), (126, 1723380), (135, 1608488), (140, 1551042), (168, 1292535), (180, 1206366), (189, 1148920), (210, 1034028), (216, 1005305), (252, 861690), (270, 804244), (280, 775521), (315, 689352), (360, 603183), (378, 574460), (420, 517014), (504, 430845), (540, 402122), (630, 344676), (756, 287230), (840, 258507), (945, 229784), (1080, 201061), (1260, 172338), (1512, 143615), (1890, 114892), (2520, 86169), (3780, 57446), (7560, 28723)]