18556290

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{739}}^1$

素因数の和:789

約数の個数: 80

約数和(自身を含む): 51575040

約数和(自身を除く): 33018750

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 31, 45, 54, 62, 81, 90, 93, 135, 155, 162, 186, 270, 279, 310, 405, 465, 558, 739, 810, 837, 930, 1395, 1478, 1674, 2217, 2511, 2790, 3695, 4185, 4434, 5022, 6651, 7390, 8370, 11085, 12555, 13302, 19953, 22170, 22909, 25110, 33255, 39906, 45818, 59859, 66510, 68727, 99765, 114545, 119718, 137454, 199530, 206181, 229090, 299295, 343635, 412362, 598590, 618543, 687270, 1030905, 1237086, 1855629, 2061810, 3092715, 3711258, 6185430, 9278145, 18556290]

約数ペア:

[(1, 18556290), (2, 9278145), (3, 6185430), (5, 3711258), (6, 3092715), (9, 2061810), (10, 1855629), (15, 1237086), (18, 1030905), (27, 687270), (30, 618543), (31, 598590), (45, 412362), (54, 343635), (62, 299295), (81, 229090), (90, 206181), (93, 199530), (135, 137454), (155, 119718), (162, 114545), (186, 99765), (270, 68727), (279, 66510), (310, 59859), (405, 45818), (465, 39906), (558, 33255), (739, 25110), (810, 22909), (837, 22170), (930, 19953), (1395, 13302), (1478, 12555), (1674, 11085), (2217, 8370), (2511, 7390), (2790, 6651), (3695, 5022), (4185, 4434)]