31797225

素因数分解:

$3^3\times 5^2\times {\mathrm{17}}^2\times {\mathrm{163}}^1$

素因数の和:216

約数の個数: 72

約数和(自身を含む): 62431520

約数和(自身を除く): 30634295

約数列:

[1, 3, 5, 9, 15, 17, 25, 27, 45, 51, 75, 85, 135, 153, 163, 225, 255, 289, 425, 459, 489, 675, 765, 815, 867, 1275, 1445, 1467, 2295, 2445, 2601, 2771, 3825, 4075, 4335, 4401, 7225, 7335, 7803, 8313, 11475, 12225, 13005, 13855, 21675, 22005, 24939, 36675, 39015, 41565, 47107, 65025, 69275, 74817, 110025, 124695, 141321, 195075, 207825, 235535, 374085, 423963, 623475, 706605, 1177675, 1271889, 1870425, 2119815, 3533025, 6359445, 10599075, 31797225]

約数ペア:

[(1, 31797225), (3, 10599075), (5, 6359445), (9, 3533025), (15, 2119815), (17, 1870425), (25, 1271889), (27, 1177675), (45, 706605), (51, 623475), (75, 423963), (85, 374085), (135, 235535), (153, 207825), (163, 195075), (225, 141321), (255, 124695), (289, 110025), (425, 74817), (459, 69275), (489, 65025), (675, 47107), (765, 41565), (815, 39015), (867, 36675), (1275, 24939), (1445, 22005), (1467, 21675), (2295, 13855), (2445, 13005), (2601, 12225), (2771, 11475), (3825, 8313), (4075, 7803), (4335, 7335), (4401, 7225)]