20564640

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{14281}}^1$

素因数の和:14302

約数の個数: 72

約数和(自身を含む): 70181748

約数和(自身を除く): 49617108

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, 14281, 28562, 42843, 57124, 71405, 85686, 114248, 128529, 142810, 171372, 214215, 228496, 257058, 285620, 342744, 428430, 456992, 514116, 571240, 642645, 685488, 856860, 1028232, 1142480, 1285290, 1370976, 1713720, 2056464, 2284960, 2570580, 3427440, 4112928, 5141160, 6854880, 10282320, 20564640]

約数ペア:

[(1, 20564640), (2, 10282320), (3, 6854880), (4, 5141160), (5, 4112928), (6, 3427440), (8, 2570580), (9, 2284960), (10, 2056464), (12, 1713720), (15, 1370976), (16, 1285290), (18, 1142480), (20, 1028232), (24, 856860), (30, 685488), (32, 642645), (36, 571240), (40, 514116), (45, 456992), (48, 428430), (60, 342744), (72, 285620), (80, 257058), (90, 228496), (96, 214215), (120, 171372), (144, 142810), (160, 128529), (180, 114248), (240, 85686), (288, 71405), (360, 57124), (480, 42843), (720, 28562), (1440, 14281)]