20640312

素因数分解:

$2^3\times 3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1$

素因数の和:123

約数の個数: 256

約数和(自身を含む): 76723200

約数和(自身を除く): 56082888

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 11, 12, 14, 17, 18, 21, 22, 24, 27, 28, 33, 34, 36, 42, 44, 51, 54, 56, 63, 66, 68, 72, 73, 77, 84, 88, 99, 102, 108, 119, 126, 132, 136, 146, 153, 154, 168, 187, 189, 198, 204, 216, 219, 231, 238, 252, 264, 292, 297, 306, 308, 357, 374, 378, 396, 408, 438, 459, 462, 476, 504, 511, 561, 584, 594, 612, 616, 657, 693, 714, 748, 756, 792, 803, 876, 918, 924, 952, 1022, 1071, 1122, 1188, 1224, 1241, 1309, 1314, 1386, 1428, 1496, 1512, 1533, 1606, 1683, 1752, 1836, 1848, 1971, 2044, 2079, 2142, 2244, 2376, 2409, 2482, 2618, 2628, 2772, 2856, 3066, 3212, 3213, 3366, 3672, 3723, 3927, 3942, 4088, 4158, 4284, 4488, 4599, 4818, 4964, 5049, 5236, 5256, 5544, 5621, 6132, 6424, 6426, 6732, 7227, 7446, 7854, 7884, 8316, 8568, 8687, 9198, 9636, 9928, 10098, 10472, 11169, 11242, 11781, 12264, 12852, 13464, 13651, 13797, 14454, 14892, 15708, 15768, 16632, 16863, 17374, 18396, 19272, 20196, 21681, 22338, 22484, 23562, 25704, 26061, 27302, 27594, 28908, 29784, 31416, 33507, 33726, 34748, 35343, 36792, 40392, 40953, 43362, 44676, 44968, 47124, 50589, 52122, 54604, 55188, 57816, 67014, 67452, 69496, 70686, 78183, 81906, 86724, 89352, 94248, 95557, 101178, 104244, 109208, 110376, 122859, 134028, 134904, 141372, 151767, 156366, 163812, 173448, 191114, 202356, 208488, 234549, 245718, 268056, 282744, 286671, 303534, 312732, 327624, 368577, 382228, 404712, 469098, 491436, 573342, 607068, 625464, 737154, 764456, 860013, 938196, 982872, 1146684, 1214136, 1474308, 1720026, 1876392, 2293368, 2580039, 2948616, 3440052, 5160078, 6880104, 10320156, 20640312]

約数ペア:

[(1, 20640312), (2, 10320156), (3, 6880104), (4, 5160078), (6, 3440052), (7, 2948616), (8, 2580039), (9, 2293368), (11, 1876392), (12, 1720026), (14, 1474308), (17, 1214136), (18, 1146684), (21, 982872), (22, 938196), (24, 860013), (27, 764456), (28, 737154), (33, 625464), (34, 607068), (36, 573342), (42, 491436), (44, 469098), (51, 404712), (54, 382228), (56, 368577), (63, 327624), (66, 312732), (68, 303534), (72, 286671), (73, 282744), (77, 268056), (84, 245718), (88, 234549), (99, 208488), (102, 202356), (108, 191114), (119, 173448), (126, 163812), (132, 156366), (136, 151767), (146, 141372), (153, 134904), (154, 134028), (168, 122859), (187, 110376), (189, 109208), (198, 104244), (204, 101178), (216, 95557), (219, 94248), (231, 89352), (238, 86724), (252, 81906), (264, 78183), (292, 70686), (297, 69496), (306, 67452), (308, 67014), (357, 57816), (374, 55188), (378, 54604), (396, 52122), (408, 50589), (438, 47124), (459, 44968), (462, 44676), (476, 43362), (504, 40953), (511, 40392), (561, 36792), (584, 35343), (594, 34748), (612, 33726), (616, 33507), (657, 31416), (693, 29784), (714, 28908), (748, 27594), (756, 27302), (792, 26061), (803, 25704), (876, 23562), (918, 22484), (924, 22338), (952, 21681), (1022, 20196), (1071, 19272), (1122, 18396), (1188, 17374), (1224, 16863), (1241, 16632), (1309, 15768), (1314, 15708), (1386, 14892), (1428, 14454), (1496, 13797), (1512, 13651), (1533, 13464), (1606, 12852), (1683, 12264), (1752, 11781), (1836, 11242), (1848, 11169), (1971, 10472), (2044, 10098), (2079, 9928), (2142, 9636), (2244, 9198), (2376, 8687), (2409, 8568), (2482, 8316), (2618, 7884), (2628, 7854), (2772, 7446), (2856, 7227), (3066, 6732), (3212, 6426), (3213, 6424), (3366, 6132), (3672, 5621), (3723, 5544), (3927, 5256), (3942, 5236), (4088, 5049), (4158, 4964), (4284, 4818), (4488, 4599)]