863870425

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{353}}^1\times {\mathrm{809}}^1$

素因数の和:1194

約数の個数: 36

約数和(自身を含む): 1182229020

約数和(自身を除く): 318358595

約数列:

[1, 5, 11, 25, 55, 121, 275, 353, 605, 809, 1765, 3025, 3883, 4045, 8825, 8899, 19415, 20225, 42713, 44495, 97075, 97889, 213565, 222475, 285577, 489445, 1067825, 1427885, 2447225, 3141347, 7139425, 15706735, 34554817, 78533675, 172774085, 863870425]

約数ペア:

[(1, 863870425), (5, 172774085), (11, 78533675), (25, 34554817), (55, 15706735), (121, 7139425), (275, 3141347), (353, 2447225), (605, 1427885), (809, 1067825), (1765, 489445), (3025, 285577), (3883, 222475), (4045, 213565), (8825, 97889), (8899, 97075), (19415, 44495), (20225, 42713)]