31240260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{881}}^1$

素因数の和:1093

約数の個数: 72

約数和(自身を含む): 95351256

約数和(自身を除く): 64110996

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 197, 394, 591, 788, 881, 985, 1182, 1762, 1773, 1970, 2364, 2643, 2955, 3524, 3546, 3940, 4405, 5286, 5910, 7092, 7929, 8810, 8865, 10572, 11820, 13215, 15858, 17620, 17730, 26430, 31716, 35460, 39645, 52860, 79290, 158580, 173557, 347114, 520671, 694228, 867785, 1041342, 1562013, 1735570, 2082684, 2603355, 3124026, 3471140, 5206710, 6248052, 7810065, 10413420, 15620130, 31240260]

約数ペア:

[(1, 31240260), (2, 15620130), (3, 10413420), (4, 7810065), (5, 6248052), (6, 5206710), (9, 3471140), (10, 3124026), (12, 2603355), (15, 2082684), (18, 1735570), (20, 1562013), (30, 1041342), (36, 867785), (45, 694228), (60, 520671), (90, 347114), (180, 173557), (197, 158580), (394, 79290), (591, 52860), (788, 39645), (881, 35460), (985, 31716), (1182, 26430), (1762, 17730), (1773, 17620), (1970, 15858), (2364, 13215), (2643, 11820), (2955, 10572), (3524, 8865), (3546, 8810), (3940, 7929), (4405, 7092), (5286, 5910)]