990339175

素因数分解:

$5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{7937}}^1$

素因数の和:8008

約数の個数: 48

約数和(自身を含む): 1511903232

約数和(自身を除く): 521564057

約数列:

[1, 5, 7, 23, 25, 31, 35, 115, 155, 161, 175, 217, 575, 713, 775, 805, 1085, 3565, 4025, 4991, 5425, 7937, 17825, 24955, 39685, 55559, 124775, 182551, 198425, 246047, 277795, 912755, 1230235, 1277857, 1388975, 1722329, 4563775, 5659081, 6151175, 6389285, 8611645, 28295405, 31946425, 39613567, 43058225, 141477025, 198067835, 990339175]

約数ペア:

[(1, 990339175), (5, 198067835), (7, 141477025), (23, 43058225), (25, 39613567), (31, 31946425), (35, 28295405), (115, 8611645), (155, 6389285), (161, 6151175), (175, 5659081), (217, 4563775), (575, 1722329), (713, 1388975), (775, 1277857), (805, 1230235), (1085, 912755), (3565, 277795), (4025, 246047), (4991, 198425), (5425, 182551), (7937, 124775), (17825, 55559), (24955, 39685)]