20755440

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{3203}}^1$

素因数の和:3228

約数の個数: 100

約数和(自身を含む): 72109224

約数和(自身を除く): 51353784

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 108, 120, 135, 144, 162, 180, 216, 240, 270, 324, 360, 405, 432, 540, 648, 720, 810, 1080, 1296, 1620, 2160, 3203, 3240, 6406, 6480, 9609, 12812, 16015, 19218, 25624, 28827, 32030, 38436, 48045, 51248, 57654, 64060, 76872, 86481, 96090, 115308, 128120, 144135, 153744, 172962, 192180, 230616, 256240, 259443, 288270, 345924, 384360, 432405, 461232, 518886, 576540, 691848, 768720, 864810, 1037772, 1153080, 1297215, 1383696, 1729620, 2075544, 2306160, 2594430, 3459240, 4151088, 5188860, 6918480, 10377720, 20755440]

約数ペア:

[(1, 20755440), (2, 10377720), (3, 6918480), (4, 5188860), (5, 4151088), (6, 3459240), (8, 2594430), (9, 2306160), (10, 2075544), (12, 1729620), (15, 1383696), (16, 1297215), (18, 1153080), (20, 1037772), (24, 864810), (27, 768720), (30, 691848), (36, 576540), (40, 518886), (45, 461232), (48, 432405), (54, 384360), (60, 345924), (72, 288270), (80, 259443), (81, 256240), (90, 230616), (108, 192180), (120, 172962), (135, 153744), (144, 144135), (162, 128120), (180, 115308), (216, 96090), (240, 86481), (270, 76872), (324, 64060), (360, 57654), (405, 51248), (432, 48045), (540, 38436), (648, 32030), (720, 28827), (810, 25624), (1080, 19218), (1296, 16015), (1620, 12812), (2160, 9609), (3203, 6480), (3240, 6406)]