2020425

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:134

約数の個数: 48

約数和(自身を含む): 3809280

約数和(自身を除く): 1788855

約数列:

[1, 3, 5, 11, 15, 25, 31, 33, 55, 75, 79, 93, 155, 165, 237, 275, 341, 395, 465, 775, 825, 869, 1023, 1185, 1705, 1975, 2325, 2449, 2607, 4345, 5115, 5925, 7347, 8525, 12245, 13035, 21725, 25575, 26939, 36735, 61225, 65175, 80817, 134695, 183675, 404085, 673475, 2020425]

約数ペア:

[(1, 2020425), (3, 673475), (5, 404085), (11, 183675), (15, 134695), (25, 80817), (31, 65175), (33, 61225), (55, 36735), (75, 26939), (79, 25575), (93, 21725), (155, 13035), (165, 12245), (237, 8525), (275, 7347), (341, 5925), (395, 5115), (465, 4345), (775, 2607), (825, 2449), (869, 2325), (1023, 1975), (1185, 1705)]