1781211222

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{71}}^1\times {\mathrm{22123}}^1$

素因数の和:22215

約数の個数: 80

約数和(自身を含む): 4625862912

約数和(自身を除く): 2844651690

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 71, 81, 126, 142, 162, 189, 213, 378, 426, 497, 567, 639, 994, 1134, 1278, 1491, 1917, 2982, 3834, 4473, 5751, 8946, 11502, 13419, 22123, 26838, 40257, 44246, 66369, 80514, 132738, 154861, 199107, 309722, 398214, 464583, 597321, 929166, 1194642, 1393749, 1570733, 1791963, 2787498, 3141466, 3583926, 4181247, 4712199, 8362494, 9424398, 10995131, 12543741, 14136597, 21990262, 25087482, 28273194, 32985393, 42409791, 65970786, 84819582, 98956179, 127229373, 197912358, 254458746, 296868537, 593737074, 890605611, 1781211222]

約数ペア:

[(1, 1781211222), (2, 890605611), (3, 593737074), (6, 296868537), (7, 254458746), (9, 197912358), (14, 127229373), (18, 98956179), (21, 84819582), (27, 65970786), (42, 42409791), (54, 32985393), (63, 28273194), (71, 25087482), (81, 21990262), (126, 14136597), (142, 12543741), (162, 10995131), (189, 9424398), (213, 8362494), (378, 4712199), (426, 4181247), (497, 3583926), (567, 3141466), (639, 2787498), (994, 1791963), (1134, 1570733), (1278, 1393749), (1491, 1194642), (1917, 929166), (2982, 597321), (3834, 464583), (4473, 398214), (5751, 309722), (8946, 199107), (11502, 154861), (13419, 132738), (22123, 80514), (26838, 66369), (40257, 44246)]