198529175

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{317}}^1$

素因数の和:428

約数の個数: 48

約数和(自身を含む): 278232192

約数和(自身を除く): 79703017

約数列:

[1, 5, 13, 25, 41, 47, 65, 205, 235, 317, 325, 533, 611, 1025, 1175, 1585, 1927, 2665, 3055, 4121, 7925, 9635, 12997, 13325, 14899, 15275, 20605, 25051, 48175, 64985, 74495, 103025, 125255, 168961, 193687, 324925, 372475, 610859, 626275, 844805, 968435, 3054295, 4224025, 4842175, 7941167, 15271475, 39705835, 198529175]

約数ペア:

[(1, 198529175), (5, 39705835), (13, 15271475), (25, 7941167), (41, 4842175), (47, 4224025), (65, 3054295), (205, 968435), (235, 844805), (317, 626275), (325, 610859), (533, 372475), (611, 324925), (1025, 193687), (1175, 168961), (1585, 125255), (1927, 103025), (2665, 74495), (3055, 64985), (4121, 48175), (7925, 25051), (9635, 20605), (12997, 15275), (13325, 14899)]