25690028

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{89}}^1$

素因数の和:187

約数の個数: 72

約数和(自身を含む): 57183840

約数和(自身を除く): 31493812

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 61, 89, 91, 122, 169, 178, 182, 244, 338, 356, 364, 427, 623, 676, 793, 854, 1157, 1183, 1246, 1586, 1708, 2314, 2366, 2492, 3172, 4628, 4732, 5429, 5551, 8099, 10309, 10858, 11102, 15041, 16198, 20618, 21716, 22204, 30082, 32396, 38003, 41236, 60164, 70577, 72163, 76006, 105287, 141154, 144326, 152012, 210574, 282308, 288652, 421148, 494039, 917501, 988078, 1835002, 1976156, 3670004, 6422507, 12845014, 25690028]

約数ペア:

[(1, 25690028), (2, 12845014), (4, 6422507), (7, 3670004), (13, 1976156), (14, 1835002), (26, 988078), (28, 917501), (52, 494039), (61, 421148), (89, 288652), (91, 282308), (122, 210574), (169, 152012), (178, 144326), (182, 141154), (244, 105287), (338, 76006), (356, 72163), (364, 70577), (427, 60164), (623, 41236), (676, 38003), (793, 32396), (854, 30082), (1157, 22204), (1183, 21716), (1246, 20618), (1586, 16198), (1708, 15041), (2314, 11102), (2366, 10858), (2492, 10309), (3172, 8099), (4628, 5551), (4732, 5429)]