81191520

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{56383}}^1$

素因数の和:56404

約数の個数: 72

約数和(自身を含む): 277070976

約数和(自身を除く): 195879456

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 56383, 112766, 169149, 225532, 281915, 338298, 451064, 507447, 563830, 676596, 845745, 902128, 1014894, 1127660, 1353192, 1691490, 1804256, 2029788, 2255320, 2537235, 2706384, 3382980, 4059576, 4510640, 5074470, 5412768, 6765960, 8119152, 9021280, 10148940, 13531920, 16238304, 20297880, 27063840, 40595760, 81191520]

約数ペア:

[(1, 81191520), (2, 40595760), (3, 27063840), (4, 20297880), (5, 16238304), (6, 13531920), (8, 10148940), (9, 9021280), (10, 8119152), (12, 6765960), (15, 5412768), (16, 5074470), (18, 4510640), (20, 4059576), (24, 3382980), (30, 2706384), (32, 2537235), (36, 2255320), (40, 2029788), (45, 1804256), (48, 1691490), (60, 1353192), (72, 1127660), (80, 1014894), (90, 902128), (96, 845745), (120, 676596), (144, 563830), (160, 507447), (180, 451064), (240, 338298), (288, 281915), (360, 225532), (480, 169149), (720, 112766), (1440, 56383)]