26781260

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1$

素因数の和:231

約数の個数: 96

約数和(自身を含む): 66528000

約数和(自身を除く): 39746740

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 43, 44, 55, 76, 86, 95, 110, 149, 172, 190, 209, 215, 220, 298, 380, 418, 430, 473, 596, 745, 817, 836, 860, 946, 1045, 1490, 1634, 1639, 1892, 2090, 2365, 2831, 2980, 3268, 3278, 4085, 4180, 4730, 5662, 6407, 6556, 8170, 8195, 8987, 9460, 11324, 12814, 14155, 16340, 16390, 17974, 25628, 28310, 31141, 32035, 32780, 35948, 44935, 56620, 62282, 64070, 70477, 89870, 121733, 124564, 128140, 140954, 155705, 179740, 243466, 281908, 311410, 352385, 486932, 608665, 622820, 704770, 1217330, 1339063, 1409540, 2434660, 2678126, 5356252, 6695315, 13390630, 26781260]

約数ペア:

[(1, 26781260), (2, 13390630), (4, 6695315), (5, 5356252), (10, 2678126), (11, 2434660), (19, 1409540), (20, 1339063), (22, 1217330), (38, 704770), (43, 622820), (44, 608665), (55, 486932), (76, 352385), (86, 311410), (95, 281908), (110, 243466), (149, 179740), (172, 155705), (190, 140954), (209, 128140), (215, 124564), (220, 121733), (298, 89870), (380, 70477), (418, 64070), (430, 62282), (473, 56620), (596, 44935), (745, 35948), (817, 32780), (836, 32035), (860, 31141), (946, 28310), (1045, 25628), (1490, 17974), (1634, 16390), (1639, 16340), (1892, 14155), (2090, 12814), (2365, 11324), (2831, 9460), (2980, 8987), (3268, 8195), (3278, 8170), (4085, 6556), (4180, 6407), (4730, 5662)]