81321708

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{193}}^1$

素因数の和:323

約数の個数: 96

約数和(自身を含む): 213846976

約数和(自身を除く): 132525268

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 37, 39, 52, 73, 74, 78, 111, 146, 148, 156, 193, 219, 222, 292, 386, 438, 444, 481, 579, 772, 876, 949, 962, 1158, 1443, 1898, 1924, 2316, 2509, 2701, 2847, 2886, 3796, 5018, 5402, 5694, 5772, 7141, 7527, 8103, 10036, 10804, 11388, 14089, 14282, 15054, 16206, 21423, 28178, 28564, 30108, 32412, 35113, 42267, 42846, 56356, 70226, 84534, 85692, 92833, 105339, 140452, 169068, 183157, 185666, 210678, 278499, 366314, 371332, 421356, 521293, 549471, 556998, 732628, 1042586, 1098942, 1113996, 1563879, 2085172, 2197884, 3127758, 6255516, 6776809, 13553618, 20330427, 27107236, 40660854, 81321708]

約数ペア:

[(1, 81321708), (2, 40660854), (3, 27107236), (4, 20330427), (6, 13553618), (12, 6776809), (13, 6255516), (26, 3127758), (37, 2197884), (39, 2085172), (52, 1563879), (73, 1113996), (74, 1098942), (78, 1042586), (111, 732628), (146, 556998), (148, 549471), (156, 521293), (193, 421356), (219, 371332), (222, 366314), (292, 278499), (386, 210678), (438, 185666), (444, 183157), (481, 169068), (579, 140452), (772, 105339), (876, 92833), (949, 85692), (962, 84534), (1158, 70226), (1443, 56356), (1898, 42846), (1924, 42267), (2316, 35113), (2509, 32412), (2701, 30108), (2847, 28564), (2886, 28178), (3796, 21423), (5018, 16206), (5402, 15054), (5694, 14282), (5772, 14089), (7141, 11388), (7527, 10804), (8103, 10036)]