81977376

素因数分解:

$2^5\times 3^1\times {\mathrm{13}}^1\times {\mathrm{65687}}^1$

素因数の和:65713

約数の個数: 48

約数和(自身を含む): 231747264

約数和(自身を除く): 149769888

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 78, 96, 104, 156, 208, 312, 416, 624, 1248, 65687, 131374, 197061, 262748, 394122, 525496, 788244, 853931, 1050992, 1576488, 1707862, 2101984, 2561793, 3152976, 3415724, 5123586, 6305952, 6831448, 10247172, 13662896, 20494344, 27325792, 40988688, 81977376]

約数ペア:

[(1, 81977376), (2, 40988688), (3, 27325792), (4, 20494344), (6, 13662896), (8, 10247172), (12, 6831448), (13, 6305952), (16, 5123586), (24, 3415724), (26, 3152976), (32, 2561793), (39, 2101984), (48, 1707862), (52, 1576488), (78, 1050992), (96, 853931), (104, 788244), (156, 525496), (208, 394122), (312, 262748), (416, 197061), (624, 131374), (1248, 65687)]