25257555

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{229}}^1$

素因数の和:305

約数の個数: 64

約数和(自身を含む): 48576000

約数和(自身を除く): 23318445

約数列:

[1, 3, 5, 9, 15, 19, 27, 43, 45, 57, 95, 129, 135, 171, 215, 229, 285, 387, 513, 645, 687, 817, 855, 1145, 1161, 1935, 2061, 2451, 2565, 3435, 4085, 4351, 5805, 6183, 7353, 9847, 10305, 12255, 13053, 21755, 22059, 29541, 30915, 36765, 39159, 49235, 65265, 88623, 110295, 117477, 147705, 187093, 195795, 265869, 443115, 561279, 587385, 935465, 1329345, 1683837, 2806395, 5051511, 8419185, 25257555]

約数ペア:

[(1, 25257555), (3, 8419185), (5, 5051511), (9, 2806395), (15, 1683837), (19, 1329345), (27, 935465), (43, 587385), (45, 561279), (57, 443115), (95, 265869), (129, 195795), (135, 187093), (171, 147705), (215, 117477), (229, 110295), (285, 88623), (387, 65265), (513, 49235), (645, 39159), (687, 36765), (817, 30915), (855, 29541), (1145, 22059), (1161, 21755), (1935, 13053), (2061, 12255), (2451, 10305), (2565, 9847), (3435, 7353), (4085, 6183), (4351, 5805)]