261615260

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{2927}}^1$

素因数の和:3086

約数の個数: 48

約数和(自身を含む): 568149120

約数和(自身を除く): 306533860

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 109, 164, 205, 218, 410, 436, 545, 820, 1090, 2180, 2927, 4469, 5854, 8938, 11708, 14635, 17876, 22345, 29270, 44690, 58540, 89380, 120007, 240014, 319043, 480028, 600035, 638086, 1200070, 1276172, 1595215, 2400140, 3190430, 6380860, 13080763, 26161526, 52323052, 65403815, 130807630, 261615260]

約数ペア:

[(1, 261615260), (2, 130807630), (4, 65403815), (5, 52323052), (10, 26161526), (20, 13080763), (41, 6380860), (82, 3190430), (109, 2400140), (164, 1595215), (205, 1276172), (218, 1200070), (410, 638086), (436, 600035), (545, 480028), (820, 319043), (1090, 240014), (2180, 120007), (2927, 89380), (4469, 58540), (5854, 44690), (8938, 29270), (11708, 22345), (14635, 17876)]