81343275

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{4391}}^1$

素因数の和:4436

約数の個数: 48

約数和(自身を含む): 152490240

約数和(自身を除く): 71146965

約数列:

[1, 3, 5, 13, 15, 19, 25, 39, 57, 65, 75, 95, 195, 247, 285, 325, 475, 741, 975, 1235, 1425, 3705, 4391, 6175, 13173, 18525, 21955, 57083, 65865, 83429, 109775, 171249, 250287, 285415, 329325, 417145, 856245, 1084577, 1251435, 1427075, 2085725, 3253731, 4281225, 5422885, 6257175, 16268655, 27114425, 81343275]

約数ペア:

[(1, 81343275), (3, 27114425), (5, 16268655), (13, 6257175), (15, 5422885), (19, 4281225), (25, 3253731), (39, 2085725), (57, 1427075), (65, 1251435), (75, 1084577), (95, 856245), (195, 417145), (247, 329325), (285, 285415), (325, 250287), (475, 171249), (741, 109775), (975, 83429), (1235, 65865), (1425, 57083), (3705, 21955), (4391, 18525), (6175, 13173)]