31371678

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1$

素因数の和:143

約数の個数: 128

約数和(自身を含む): 82252800

約数和(自身を除く): 50881122

約数列:

[1, 2, 3, 6, 9, 13, 18, 23, 26, 27, 29, 39, 46, 54, 58, 67, 69, 78, 87, 117, 134, 138, 174, 201, 207, 234, 261, 299, 351, 377, 402, 414, 522, 598, 603, 621, 667, 702, 754, 783, 871, 897, 1131, 1206, 1242, 1334, 1541, 1566, 1742, 1794, 1809, 1943, 2001, 2262, 2613, 2691, 3082, 3393, 3618, 3886, 4002, 4623, 5226, 5382, 5829, 6003, 6786, 7839, 8073, 8671, 9246, 10179, 11658, 12006, 13869, 15678, 16146, 17342, 17487, 18009, 20033, 20358, 23517, 25259, 26013, 27738, 34974, 36018, 40066, 41607, 44689, 47034, 50518, 52026, 52461, 60099, 75777, 78039, 83214, 89378, 104922, 120198, 134067, 151554, 156078, 180297, 227331, 234117, 268134, 360594, 402201, 454662, 468234, 540891, 580957, 681993, 804402, 1081782, 1161914, 1206603, 1363986, 1742871, 2413206, 3485742, 5228613, 10457226, 15685839, 31371678]

約数ペア:

[(1, 31371678), (2, 15685839), (3, 10457226), (6, 5228613), (9, 3485742), (13, 2413206), (18, 1742871), (23, 1363986), (26, 1206603), (27, 1161914), (29, 1081782), (39, 804402), (46, 681993), (54, 580957), (58, 540891), (67, 468234), (69, 454662), (78, 402201), (87, 360594), (117, 268134), (134, 234117), (138, 227331), (174, 180297), (201, 156078), (207, 151554), (234, 134067), (261, 120198), (299, 104922), (351, 89378), (377, 83214), (402, 78039), (414, 75777), (522, 60099), (598, 52461), (603, 52026), (621, 50518), (667, 47034), (702, 44689), (754, 41607), (783, 40066), (871, 36018), (897, 34974), (1131, 27738), (1206, 26013), (1242, 25259), (1334, 23517), (1541, 20358), (1566, 20033), (1742, 18009), (1794, 17487), (1809, 17342), (1943, 16146), (2001, 15678), (2262, 13869), (2613, 12006), (2691, 11658), (3082, 10179), (3393, 9246), (3618, 8671), (3886, 8073), (4002, 7839), (4623, 6786), (5226, 6003), (5382, 5829)]