78471745

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1$

素因数の和:186

約数の個数: 64

約数和(自身を含む): 117573120

約数和(自身を除く): 39101375

約数列:

[1, 5, 11, 17, 23, 41, 55, 85, 89, 115, 187, 205, 253, 391, 445, 451, 697, 935, 943, 979, 1265, 1513, 1955, 2047, 2255, 3485, 3649, 4301, 4715, 4895, 7565, 7667, 10235, 10373, 16031, 16643, 18245, 21505, 22517, 34799, 38335, 40139, 51865, 62033, 80155, 83215, 83927, 112585, 173995, 176341, 200695, 310165, 382789, 419635, 682363, 881705, 923197, 1426759, 1913945, 3411815, 4615985, 7133795, 15694349, 78471745]

約数ペア:

[(1, 78471745), (5, 15694349), (11, 7133795), (17, 4615985), (23, 3411815), (41, 1913945), (55, 1426759), (85, 923197), (89, 881705), (115, 682363), (187, 419635), (205, 382789), (253, 310165), (391, 200695), (445, 176341), (451, 173995), (697, 112585), (935, 83927), (943, 83215), (979, 80155), (1265, 62033), (1513, 51865), (1955, 40139), (2047, 38335), (2255, 34799), (3485, 22517), (3649, 21505), (4301, 18245), (4715, 16643), (4895, 16031), (7565, 10373), (7667, 10235)]