31138275

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{37}}^1\times {\mathrm{229}}^1$

素因数の和:293

約数の個数: 72

約数和(自身を含む): 61774320

約数和(自身を除く): 30636045

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 37, 49, 75, 105, 111, 147, 175, 185, 229, 245, 259, 525, 555, 687, 735, 777, 925, 1145, 1225, 1295, 1603, 1813, 2775, 3435, 3675, 3885, 4809, 5439, 5725, 6475, 8015, 8473, 9065, 11221, 17175, 19425, 24045, 25419, 27195, 33663, 40075, 42365, 45325, 56105, 59311, 120225, 127095, 135975, 168315, 177933, 211825, 280525, 296555, 415177, 635475, 841575, 889665, 1245531, 1482775, 2075885, 4448325, 6227655, 10379425, 31138275]

約数ペア:

[(1, 31138275), (3, 10379425), (5, 6227655), (7, 4448325), (15, 2075885), (21, 1482775), (25, 1245531), (35, 889665), (37, 841575), (49, 635475), (75, 415177), (105, 296555), (111, 280525), (147, 211825), (175, 177933), (185, 168315), (229, 135975), (245, 127095), (259, 120225), (525, 59311), (555, 56105), (687, 45325), (735, 42365), (777, 40075), (925, 33663), (1145, 27195), (1225, 25419), (1295, 24045), (1603, 19425), (1813, 17175), (2775, 11221), (3435, 9065), (3675, 8473), (3885, 8015), (4809, 6475), (5439, 5725)]