19747440

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{27427}}^1$

素因数の和:27446

約数の個数: 60

約数和(自身を含む): 66320904

約数和(自身を除く): 46573464

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, 27427, 54854, 82281, 109708, 137135, 164562, 219416, 246843, 274270, 329124, 411405, 438832, 493686, 548540, 658248, 822810, 987372, 1097080, 1234215, 1316496, 1645620, 1974744, 2194160, 2468430, 3291240, 3949488, 4936860, 6582480, 9873720, 19747440]

約数ペア:

[(1, 19747440), (2, 9873720), (3, 6582480), (4, 4936860), (5, 3949488), (6, 3291240), (8, 2468430), (9, 2194160), (10, 1974744), (12, 1645620), (15, 1316496), (16, 1234215), (18, 1097080), (20, 987372), (24, 822810), (30, 658248), (36, 548540), (40, 493686), (45, 438832), (48, 411405), (60, 329124), (72, 274270), (80, 246843), (90, 219416), (120, 164562), (144, 137135), (180, 109708), (240, 82281), (360, 54854), (720, 27427)]