821759985

素因数分解:

$3^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{1877}}^1$

素因数の和:1964

約数の個数: 80

約数和(自身を含む): 1570669056

約数和(自身を除く): 748909071

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 47, 69, 81, 115, 135, 141, 207, 235, 345, 405, 423, 621, 705, 1035, 1081, 1269, 1863, 1877, 2115, 3105, 3243, 3807, 5405, 5631, 6345, 9315, 9385, 9729, 16215, 16893, 19035, 28155, 29187, 43171, 48645, 50679, 84465, 87561, 88219, 129513, 145935, 152037, 215855, 253395, 264657, 388539, 437805, 441095, 647565, 760185, 793971, 1165617, 1323285, 1942695, 2029037, 2381913, 3496851, 3969855, 5828085, 6087111, 7145739, 10145185, 11909565, 17484255, 18261333, 30435555, 35728695, 54783999, 91306665, 164351997, 273919995, 821759985]

約数ペア:

[(1, 821759985), (3, 273919995), (5, 164351997), (9, 91306665), (15, 54783999), (23, 35728695), (27, 30435555), (45, 18261333), (47, 17484255), (69, 11909565), (81, 10145185), (115, 7145739), (135, 6087111), (141, 5828085), (207, 3969855), (235, 3496851), (345, 2381913), (405, 2029037), (423, 1942695), (621, 1323285), (705, 1165617), (1035, 793971), (1081, 760185), (1269, 647565), (1863, 441095), (1877, 437805), (2115, 388539), (3105, 264657), (3243, 253395), (3807, 215855), (5405, 152037), (5631, 145935), (6345, 129513), (9315, 88219), (9385, 87561), (9729, 84465), (16215, 50679), (16893, 48645), (19035, 43171), (28155, 29187)]