161808780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{1171}}^1$

素因数の和:1244

約数の個数: 144

約数和(自身を含む): 538707456

約数和(自身を除く): 376898676

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 47, 49, 60, 70, 84, 94, 98, 105, 140, 141, 147, 188, 196, 210, 235, 245, 282, 294, 329, 420, 470, 490, 564, 588, 658, 705, 735, 940, 980, 987, 1171, 1316, 1410, 1470, 1645, 1974, 2303, 2342, 2820, 2940, 3290, 3513, 3948, 4606, 4684, 4935, 5855, 6580, 6909, 7026, 8197, 9212, 9870, 11515, 11710, 13818, 14052, 16394, 17565, 19740, 23030, 23420, 24591, 27636, 32788, 34545, 35130, 40985, 46060, 49182, 55037, 57379, 69090, 70260, 81970, 98364, 110074, 114758, 122955, 138180, 163940, 165111, 172137, 220148, 229516, 245910, 275185, 286895, 330222, 344274, 385259, 491820, 550370, 573790, 660444, 688548, 770518, 825555, 860685, 1100740, 1147580, 1155777, 1541036, 1651110, 1721370, 1926295, 2311554, 2696813, 3302220, 3442740, 3852590, 4623108, 5393626, 5778885, 7705180, 8090439, 10787252, 11557770, 13484065, 16180878, 23115540, 26968130, 32361756, 40452195, 53936260, 80904390, 161808780]

約数ペア:

[(1, 161808780), (2, 80904390), (3, 53936260), (4, 40452195), (5, 32361756), (6, 26968130), (7, 23115540), (10, 16180878), (12, 13484065), (14, 11557770), (15, 10787252), (20, 8090439), (21, 7705180), (28, 5778885), (30, 5393626), (35, 4623108), (42, 3852590), (47, 3442740), (49, 3302220), (60, 2696813), (70, 2311554), (84, 1926295), (94, 1721370), (98, 1651110), (105, 1541036), (140, 1155777), (141, 1147580), (147, 1100740), (188, 860685), (196, 825555), (210, 770518), (235, 688548), (245, 660444), (282, 573790), (294, 550370), (329, 491820), (420, 385259), (470, 344274), (490, 330222), (564, 286895), (588, 275185), (658, 245910), (705, 229516), (735, 220148), (940, 172137), (980, 165111), (987, 163940), (1171, 138180), (1316, 122955), (1410, 114758), (1470, 110074), (1645, 98364), (1974, 81970), (2303, 70260), (2342, 69090), (2820, 57379), (2940, 55037), (3290, 49182), (3513, 46060), (3948, 40985), (4606, 35130), (4684, 34545), (4935, 32788), (5855, 27636), (6580, 24591), (6909, 23420), (7026, 23030), (8197, 19740), (9212, 17565), (9870, 16394), (11515, 14052), (11710, 13818)]