18438480

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{25609}}^1$

素因数の和:25628

約数の個数: 60

約数和(自身を含む): 61924980

約数和(自身を除く): 43486500

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 25609, 51218, 76827, 102436, 128045, 153654, 204872, 230481, 256090, 307308, 384135, 409744, 460962, 512180, 614616, 768270, 921924, 1024360, 1152405, 1229232, 1536540, 1843848, 2048720, 2304810, 3073080, 3687696, 4609620, 6146160, 9219240, 18438480]

約数ペア:

[(1, 18438480), (2, 9219240), (3, 6146160), (4, 4609620), (5, 3687696), (6, 3073080), (8, 2304810), (9, 2048720), (10, 1843848), (12, 1536540), (15, 1229232), (16, 1152405), (18, 1024360), (20, 921924), (24, 768270), (30, 614616), (36, 512180), (40, 460962), (45, 409744), (48, 384135), (60, 307308), (72, 256090), (80, 230481), (90, 204872), (120, 153654), (144, 128045), (180, 102436), (240, 76827), (360, 51218), (720, 25609)]