198778875

素因数分解:

$3^1\times 5^3\times {\mathrm{17}}^1\times {\mathrm{31181}}^1$

素因数の和:31216

約数の個数: 32

約数和(自身を含む): 350236224

約数和(自身を除く): 151457349

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 125, 255, 375, 425, 1275, 2125, 6375, 31181, 93543, 155905, 467715, 530077, 779525, 1590231, 2338575, 2650385, 3897625, 7951155, 11692875, 13251925, 39755775, 66259625, 198778875]

約数ペア:

[(1, 198778875), (3, 66259625), (5, 39755775), (15, 13251925), (17, 11692875), (25, 7951155), (51, 3897625), (75, 2650385), (85, 2338575), (125, 1590231), (255, 779525), (375, 530077), (425, 467715), (1275, 155905), (2125, 93543), (6375, 31181)]