81975880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{811}}^1$

素因数の和:867

約数の個数: 96

約数和(自身を含む): 222747840

約数和(自身を除く): 140771960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 95, 133, 140, 152, 190, 266, 280, 361, 380, 532, 665, 722, 760, 811, 1064, 1330, 1444, 1622, 1805, 2527, 2660, 2888, 3244, 3610, 4055, 5054, 5320, 5677, 6488, 7220, 8110, 10108, 11354, 12635, 14440, 15409, 16220, 20216, 22708, 25270, 28385, 30818, 32440, 45416, 50540, 56770, 61636, 77045, 101080, 107863, 113540, 123272, 154090, 215726, 227080, 292771, 308180, 431452, 539315, 585542, 616360, 862904, 1078630, 1171084, 1463855, 2049397, 2157260, 2342168, 2927710, 4098794, 4314520, 5855420, 8197588, 10246985, 11710840, 16395176, 20493970, 40987940, 81975880]

約数ペア:

[(1, 81975880), (2, 40987940), (4, 20493970), (5, 16395176), (7, 11710840), (8, 10246985), (10, 8197588), (14, 5855420), (19, 4314520), (20, 4098794), (28, 2927710), (35, 2342168), (38, 2157260), (40, 2049397), (56, 1463855), (70, 1171084), (76, 1078630), (95, 862904), (133, 616360), (140, 585542), (152, 539315), (190, 431452), (266, 308180), (280, 292771), (361, 227080), (380, 215726), (532, 154090), (665, 123272), (722, 113540), (760, 107863), (811, 101080), (1064, 77045), (1330, 61636), (1444, 56770), (1622, 50540), (1805, 45416), (2527, 32440), (2660, 30818), (2888, 28385), (3244, 25270), (3610, 22708), (4055, 20216), (5054, 16220), (5320, 15409), (5677, 14440), (6488, 12635), (7220, 11354), (8110, 10108)]