81373068

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{2357}}^1$

素因数の和:2511

約数の個数: 72

約数和(自身を含む): 236894112

約数和(自身を除く): 155521044

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 137, 252, 274, 411, 548, 822, 959, 1233, 1644, 1918, 2357, 2466, 2877, 3836, 4714, 4932, 5754, 7071, 8631, 9428, 11508, 14142, 16499, 17262, 21213, 28284, 32998, 34524, 42426, 49497, 65996, 84852, 98994, 148491, 197988, 296982, 322909, 593964, 645818, 968727, 1291636, 1937454, 2260363, 2906181, 3874908, 4520726, 5812362, 6781089, 9041452, 11624724, 13562178, 20343267, 27124356, 40686534, 81373068]

約数ペア:

[(1, 81373068), (2, 40686534), (3, 27124356), (4, 20343267), (6, 13562178), (7, 11624724), (9, 9041452), (12, 6781089), (14, 5812362), (18, 4520726), (21, 3874908), (28, 2906181), (36, 2260363), (42, 1937454), (63, 1291636), (84, 968727), (126, 645818), (137, 593964), (252, 322909), (274, 296982), (411, 197988), (548, 148491), (822, 98994), (959, 84852), (1233, 65996), (1644, 49497), (1918, 42426), (2357, 34524), (2466, 32998), (2877, 28284), (3836, 21213), (4714, 17262), (4932, 16499), (5754, 14142), (7071, 11508), (8631, 9428)]