28011340

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{101}}^1\times {\mathrm{283}}^1$

素因数の和:407

約数の個数: 72

約数和(自身を含む): 69349392

約数和(自身を除く): 41338052

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 101, 140, 196, 202, 245, 283, 404, 490, 505, 566, 707, 980, 1010, 1132, 1414, 1415, 1981, 2020, 2828, 2830, 3535, 3962, 4949, 5660, 7070, 7924, 9898, 9905, 13867, 14140, 19796, 19810, 24745, 27734, 28583, 39620, 49490, 55468, 57166, 69335, 98980, 114332, 138670, 142915, 200081, 277340, 285830, 400162, 571660, 800324, 1000405, 1400567, 2000810, 2801134, 4001620, 5602268, 7002835, 14005670, 28011340]

約数ペア:

[(1, 28011340), (2, 14005670), (4, 7002835), (5, 5602268), (7, 4001620), (10, 2801134), (14, 2000810), (20, 1400567), (28, 1000405), (35, 800324), (49, 571660), (70, 400162), (98, 285830), (101, 277340), (140, 200081), (196, 142915), (202, 138670), (245, 114332), (283, 98980), (404, 69335), (490, 57166), (505, 55468), (566, 49490), (707, 39620), (980, 28583), (1010, 27734), (1132, 24745), (1414, 19810), (1415, 19796), (1981, 14140), (2020, 13867), (2828, 9905), (2830, 9898), (3535, 7924), (3962, 7070), (4949, 5660)]