31396860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{157}}^1$

素因数の和:284

約数の個数: 144

約数和(自身を含む): 105592032

約数和(自身を除く): 74195172

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 101, 110, 132, 157, 165, 180, 198, 202, 220, 303, 314, 330, 396, 404, 471, 495, 505, 606, 628, 660, 785, 909, 942, 990, 1010, 1111, 1212, 1413, 1515, 1570, 1727, 1818, 1884, 1980, 2020, 2222, 2355, 2826, 3030, 3140, 3333, 3454, 3636, 4444, 4545, 4710, 5181, 5555, 5652, 6060, 6666, 6908, 7065, 8635, 9090, 9420, 9999, 10362, 11110, 13332, 14130, 15543, 15857, 16665, 17270, 18180, 19998, 20724, 22220, 25905, 28260, 31086, 31714, 33330, 34540, 39996, 47571, 49995, 51810, 62172, 63428, 66660, 77715, 79285, 95142, 99990, 103620, 142713, 155430, 158570, 174427, 190284, 199980, 237855, 285426, 310860, 317140, 348854, 475710, 523281, 570852, 697708, 713565, 872135, 951420, 1046562, 1427130, 1569843, 1744270, 2093124, 2616405, 2854260, 3139686, 3488540, 5232810, 6279372, 7849215, 10465620, 15698430, 31396860]

約数ペア:

[(1, 31396860), (2, 15698430), (3, 10465620), (4, 7849215), (5, 6279372), (6, 5232810), (9, 3488540), (10, 3139686), (11, 2854260), (12, 2616405), (15, 2093124), (18, 1744270), (20, 1569843), (22, 1427130), (30, 1046562), (33, 951420), (36, 872135), (44, 713565), (45, 697708), (55, 570852), (60, 523281), (66, 475710), (90, 348854), (99, 317140), (101, 310860), (110, 285426), (132, 237855), (157, 199980), (165, 190284), (180, 174427), (198, 158570), (202, 155430), (220, 142713), (303, 103620), (314, 99990), (330, 95142), (396, 79285), (404, 77715), (471, 66660), (495, 63428), (505, 62172), (606, 51810), (628, 49995), (660, 47571), (785, 39996), (909, 34540), (942, 33330), (990, 31714), (1010, 31086), (1111, 28260), (1212, 25905), (1413, 22220), (1515, 20724), (1570, 19998), (1727, 18180), (1818, 17270), (1884, 16665), (1980, 15857), (2020, 15543), (2222, 14130), (2355, 13332), (2826, 11110), (3030, 10362), (3140, 9999), (3333, 9420), (3454, 9090), (3636, 8635), (4444, 7065), (4545, 6908), (4710, 6666), (5181, 6060), (5555, 5652)]