81981732

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1657}}^1$

素因数の和:1721

約数の個数: 96

約数和(自身を含む): 237690880

約数和(自身を除く): 155709148

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 19, 21, 28, 31, 38, 42, 57, 62, 76, 84, 93, 114, 124, 133, 186, 217, 228, 266, 372, 399, 434, 532, 589, 651, 798, 868, 1178, 1302, 1596, 1657, 1767, 2356, 2604, 3314, 3534, 4123, 4971, 6628, 7068, 8246, 9942, 11599, 12369, 16492, 19884, 23198, 24738, 31483, 34797, 46396, 49476, 51367, 62966, 69594, 94449, 102734, 125932, 139188, 154101, 188898, 205468, 220381, 308202, 359569, 377796, 440762, 616404, 661143, 719138, 881524, 975973, 1078707, 1322286, 1438276, 1951946, 2157414, 2644572, 2927919, 3903892, 4314828, 5855838, 6831811, 11711676, 13663622, 20495433, 27327244, 40990866, 81981732]

約数ペア:

[(1, 81981732), (2, 40990866), (3, 27327244), (4, 20495433), (6, 13663622), (7, 11711676), (12, 6831811), (14, 5855838), (19, 4314828), (21, 3903892), (28, 2927919), (31, 2644572), (38, 2157414), (42, 1951946), (57, 1438276), (62, 1322286), (76, 1078707), (84, 975973), (93, 881524), (114, 719138), (124, 661143), (133, 616404), (186, 440762), (217, 377796), (228, 359569), (266, 308202), (372, 220381), (399, 205468), (434, 188898), (532, 154101), (589, 139188), (651, 125932), (798, 102734), (868, 94449), (1178, 69594), (1302, 62966), (1596, 51367), (1657, 49476), (1767, 46396), (2356, 34797), (2604, 31483), (3314, 24738), (3534, 23198), (4123, 19884), (4971, 16492), (6628, 12369), (7068, 11599), (8246, 9942)]