278315320

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{3581}}^1$

素因数の和:3688

約数の個数: 64

約数和(自身を含む): 657655200

約数和(自身を除く): 379339880

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 67, 116, 134, 145, 232, 268, 290, 335, 536, 580, 670, 1160, 1340, 1943, 2680, 3581, 3886, 7162, 7772, 9715, 14324, 15544, 17905, 19430, 28648, 35810, 38860, 71620, 77720, 103849, 143240, 207698, 239927, 415396, 479854, 519245, 830792, 959708, 1038490, 1199635, 1919416, 2076980, 2399270, 4153960, 4798540, 6957883, 9597080, 13915766, 27831532, 34789415, 55663064, 69578830, 139157660, 278315320]

約数ペア:

[(1, 278315320), (2, 139157660), (4, 69578830), (5, 55663064), (8, 34789415), (10, 27831532), (20, 13915766), (29, 9597080), (40, 6957883), (58, 4798540), (67, 4153960), (116, 2399270), (134, 2076980), (145, 1919416), (232, 1199635), (268, 1038490), (290, 959708), (335, 830792), (536, 519245), (580, 479854), (670, 415396), (1160, 239927), (1340, 207698), (1943, 143240), (2680, 103849), (3581, 77720), (3886, 71620), (7162, 38860), (7772, 35810), (9715, 28648), (14324, 19430), (15544, 17905)]