8720460

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{769}}^1$

素因数の和:797

約数の個数: 120

約数和(自身を含む): 31305120

約数和(自身を除く): 22584660

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 81, 84, 90, 105, 108, 126, 135, 140, 162, 180, 189, 210, 252, 270, 315, 324, 378, 405, 420, 540, 567, 630, 756, 769, 810, 945, 1134, 1260, 1538, 1620, 1890, 2268, 2307, 2835, 3076, 3780, 3845, 4614, 5383, 5670, 6921, 7690, 9228, 10766, 11340, 11535, 13842, 15380, 16149, 20763, 21532, 23070, 26915, 27684, 32298, 34605, 41526, 46140, 48447, 53830, 62289, 64596, 69210, 80745, 83052, 96894, 103815, 107660, 124578, 138420, 145341, 161490, 193788, 207630, 242235, 249156, 290682, 311445, 322980, 415260, 436023, 484470, 581364, 622890, 726705, 872046, 968940, 1245780, 1453410, 1744092, 2180115, 2906820, 4360230, 8720460]

約数ペア:

[(1, 8720460), (2, 4360230), (3, 2906820), (4, 2180115), (5, 1744092), (6, 1453410), (7, 1245780), (9, 968940), (10, 872046), (12, 726705), (14, 622890), (15, 581364), (18, 484470), (20, 436023), (21, 415260), (27, 322980), (28, 311445), (30, 290682), (35, 249156), (36, 242235), (42, 207630), (45, 193788), (54, 161490), (60, 145341), (63, 138420), (70, 124578), (81, 107660), (84, 103815), (90, 96894), (105, 83052), (108, 80745), (126, 69210), (135, 64596), (140, 62289), (162, 53830), (180, 48447), (189, 46140), (210, 41526), (252, 34605), (270, 32298), (315, 27684), (324, 26915), (378, 23070), (405, 21532), (420, 20763), (540, 16149), (567, 15380), (630, 13842), (756, 11535), (769, 11340), (810, 10766), (945, 9228), (1134, 7690), (1260, 6921), (1538, 5670), (1620, 5383), (1890, 4614), (2268, 3845), (2307, 3780), (2835, 3076)]