18745740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{8011}}^1$

素因数の和:8039

約数の個数: 72

約数和(自身を含む): 61243728

約数和(自身を除く): 42497988

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 8011, 16022, 24033, 32044, 40055, 48066, 72099, 80110, 96132, 104143, 120165, 144198, 160220, 208286, 240330, 288396, 312429, 360495, 416572, 480660, 520715, 624858, 720990, 937287, 1041430, 1249716, 1441980, 1562145, 1874574, 2082860, 3124290, 3749148, 4686435, 6248580, 9372870, 18745740]

約数ペア:

[(1, 18745740), (2, 9372870), (3, 6248580), (4, 4686435), (5, 3749148), (6, 3124290), (9, 2082860), (10, 1874574), (12, 1562145), (13, 1441980), (15, 1249716), (18, 1041430), (20, 937287), (26, 720990), (30, 624858), (36, 520715), (39, 480660), (45, 416572), (52, 360495), (60, 312429), (65, 288396), (78, 240330), (90, 208286), (117, 160220), (130, 144198), (156, 120165), (180, 104143), (195, 96132), (234, 80110), (260, 72099), (390, 48066), (468, 40055), (585, 32044), (780, 24033), (1170, 16022), (2340, 8011)]