138178125

素因数分解:

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

素因数の和:82

約数の個数: 72

約数和(自身を含む): 265061160

約数和(自身を除く): 126883035

約数列:

[1, 3, 5, 9, 15, 17, 25, 45, 51, 75, 85, 125, 153, 225, 255, 289, 375, 425, 625, 765, 867, 1125, 1275, 1445, 1875, 2125, 2601, 3125, 3825, 4335, 4913, 5625, 6375, 7225, 9375, 10625, 13005, 14739, 19125, 21675, 24565, 28125, 31875, 36125, 44217, 53125, 65025, 73695, 95625, 108375, 122825, 159375, 180625, 221085, 325125, 368475, 478125, 541875, 614125, 903125, 1105425, 1625625, 1842375, 2709375, 3070625, 5527125, 8128125, 9211875, 15353125, 27635625, 46059375, 138178125]

約数ペア:

[(1, 138178125), (3, 46059375), (5, 27635625), (9, 15353125), (15, 9211875), (17, 8128125), (25, 5527125), (45, 3070625), (51, 2709375), (75, 1842375), (85, 1625625), (125, 1105425), (153, 903125), (225, 614125), (255, 541875), (289, 478125), (375, 368475), (425, 325125), (625, 221085), (765, 180625), (867, 159375), (1125, 122825), (1275, 108375), (1445, 95625), (1875, 73695), (2125, 65025), (2601, 53125), (3125, 44217), (3825, 36125), (4335, 31875), (4913, 28125), (5625, 24565), (6375, 21675), (7225, 19125), (9375, 14739), (10625, 13005)]