20396040

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{24281}}^1$

素因数の和:24302

約数の個数: 64

約数和(自身を含む): 69932160

約数和(自身を除く): 49536120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 24281, 48562, 72843, 97124, 121405, 145686, 169967, 194248, 242810, 291372, 339934, 364215, 485620, 509901, 582744, 679868, 728430, 849835, 971240, 1019802, 1359736, 1456860, 1699670, 2039604, 2549505, 2913720, 3399340, 4079208, 5099010, 6798680, 10198020, 20396040]

約数ペア:

[(1, 20396040), (2, 10198020), (3, 6798680), (4, 5099010), (5, 4079208), (6, 3399340), (7, 2913720), (8, 2549505), (10, 2039604), (12, 1699670), (14, 1456860), (15, 1359736), (20, 1019802), (21, 971240), (24, 849835), (28, 728430), (30, 679868), (35, 582744), (40, 509901), (42, 485620), (56, 364215), (60, 339934), (70, 291372), (84, 242810), (105, 194248), (120, 169967), (140, 145686), (168, 121405), (210, 97124), (280, 72843), (420, 48562), (840, 24281)]