81111212

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{281}}^1$

素因数の和:379

約数の個数: 72

約数和(自身を含む): 179176032

約数和(自身を除く): 98064820

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 61, 91, 122, 169, 182, 244, 281, 338, 364, 427, 562, 676, 793, 854, 1124, 1183, 1586, 1708, 1967, 2366, 3172, 3653, 3934, 4732, 5551, 7306, 7868, 10309, 11102, 14612, 17141, 20618, 22204, 25571, 34282, 41236, 47489, 51142, 68564, 72163, 94978, 102284, 119987, 144326, 189956, 222833, 239974, 288652, 332423, 445666, 479948, 664846, 891332, 1329692, 1559831, 2896829, 3119662, 5793658, 6239324, 11587316, 20277803, 40555606, 81111212]

約数ペア:

[(1, 81111212), (2, 40555606), (4, 20277803), (7, 11587316), (13, 6239324), (14, 5793658), (26, 3119662), (28, 2896829), (52, 1559831), (61, 1329692), (91, 891332), (122, 664846), (169, 479948), (182, 445666), (244, 332423), (281, 288652), (338, 239974), (364, 222833), (427, 189956), (562, 144326), (676, 119987), (793, 102284), (854, 94978), (1124, 72163), (1183, 68564), (1586, 51142), (1708, 47489), (1967, 41236), (2366, 34282), (3172, 25571), (3653, 22204), (3934, 20618), (4732, 17141), (5551, 14612), (7306, 11102), (7868, 10309)]