81338925

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{773}}^1$

素因数の和:870

約数の個数: 48

約数和(自身を含む): 142812288

約数和(自身を除く): 61473363

約数列:

[1, 3, 5, 15, 23, 25, 61, 69, 75, 115, 183, 305, 345, 575, 773, 915, 1403, 1525, 1725, 2319, 3865, 4209, 4575, 7015, 11595, 17779, 19325, 21045, 35075, 47153, 53337, 57975, 88895, 105225, 141459, 235765, 266685, 444475, 707295, 1084519, 1178825, 1333425, 3253557, 3536475, 5422595, 16267785, 27112975, 81338925]

約数ペア:

[(1, 81338925), (3, 27112975), (5, 16267785), (15, 5422595), (23, 3536475), (25, 3253557), (61, 1333425), (69, 1178825), (75, 1084519), (115, 707295), (183, 444475), (305, 266685), (345, 235765), (575, 141459), (773, 105225), (915, 88895), (1403, 57975), (1525, 53337), (1725, 47153), (2319, 35075), (3865, 21045), (4209, 19325), (4575, 17779), (7015, 11595)]