640169964

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{227}}^1$

素因数の和:313

約数の個数: 216

約数和(自身を含む): 2023676928

約数和(自身を除く): 1383506964

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 19, 21, 28, 31, 36, 38, 42, 57, 62, 63, 76, 84, 93, 114, 124, 126, 133, 171, 186, 217, 227, 228, 252, 266, 279, 342, 361, 372, 399, 434, 454, 532, 558, 589, 651, 681, 684, 722, 798, 868, 908, 1083, 1116, 1178, 1197, 1302, 1362, 1444, 1589, 1596, 1767, 1953, 2043, 2166, 2356, 2394, 2527, 2604, 2724, 3178, 3249, 3534, 3906, 4086, 4123, 4313, 4332, 4767, 4788, 5054, 5301, 6356, 6498, 7037, 7068, 7581, 7812, 8172, 8246, 8626, 9534, 10108, 10602, 11191, 12369, 12939, 12996, 14074, 14301, 15162, 16492, 17252, 19068, 21111, 21204, 22382, 22743, 24738, 25878, 28148, 28602, 30191, 30324, 33573, 37107, 38817, 42222, 44764, 45486, 49259, 49476, 51756, 57204, 60382, 63333, 67146, 74214, 77634, 78337, 81947, 84444, 90573, 90972, 98518, 100719, 120764, 126666, 133703, 134292, 147777, 148428, 155268, 156674, 163894, 181146, 197036, 201438, 235011, 245841, 253332, 267406, 271719, 295554, 313348, 327788, 362292, 401109, 402876, 443331, 470022, 491682, 534812, 543438, 573629, 591108, 705033, 737523, 802218, 886662, 935921, 940044, 983364, 1086876, 1147258, 1203327, 1410066, 1475046, 1604436, 1720887, 1773324, 1871842, 2294516, 2406654, 2540357, 2807763, 2820132, 2950092, 3441774, 3743684, 4813308, 5080714, 5162661, 5615526, 6883548, 7621071, 8423289, 10161428, 10325322, 11231052, 15242142, 16846578, 17782499, 20650644, 22863213, 30484284, 33693156, 35564998, 45726426, 53347497, 71129996, 91452852, 106694994, 160042491, 213389988, 320084982, 640169964]

約数ペア:

[(1, 640169964), (2, 320084982), (3, 213389988), (4, 160042491), (6, 106694994), (7, 91452852), (9, 71129996), (12, 53347497), (14, 45726426), (18, 35564998), (19, 33693156), (21, 30484284), (28, 22863213), (31, 20650644), (36, 17782499), (38, 16846578), (42, 15242142), (57, 11231052), (62, 10325322), (63, 10161428), (76, 8423289), (84, 7621071), (93, 6883548), (114, 5615526), (124, 5162661), (126, 5080714), (133, 4813308), (171, 3743684), (186, 3441774), (217, 2950092), (227, 2820132), (228, 2807763), (252, 2540357), (266, 2406654), (279, 2294516), (342, 1871842), (361, 1773324), (372, 1720887), (399, 1604436), (434, 1475046), (454, 1410066), (532, 1203327), (558, 1147258), (589, 1086876), (651, 983364), (681, 940044), (684, 935921), (722, 886662), (798, 802218), (868, 737523), (908, 705033), (1083, 591108), (1116, 573629), (1178, 543438), (1197, 534812), (1302, 491682), (1362, 470022), (1444, 443331), (1589, 402876), (1596, 401109), (1767, 362292), (1953, 327788), (2043, 313348), (2166, 295554), (2356, 271719), (2394, 267406), (2527, 253332), (2604, 245841), (2724, 235011), (3178, 201438), (3249, 197036), (3534, 181146), (3906, 163894), (4086, 156674), (4123, 155268), (4313, 148428), (4332, 147777), (4767, 134292), (4788, 133703), (5054, 126666), (5301, 120764), (6356, 100719), (6498, 98518), (7037, 90972), (7068, 90573), (7581, 84444), (7812, 81947), (8172, 78337), (8246, 77634), (8626, 74214), (9534, 67146), (10108, 63333), (10602, 60382), (11191, 57204), (12369, 51756), (12939, 49476), (12996, 49259), (14074, 45486), (14301, 44764), (15162, 42222), (16492, 38817), (17252, 37107), (19068, 33573), (21111, 30324), (21204, 30191), (22382, 28602), (22743, 28148), (24738, 25878)]