20422560

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{271}}^1$

素因数の和:446

約数の個数: 96

約数和(自身を含む): 64979712

約数和(自身を除く): 44557152

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 157, 160, 240, 271, 314, 471, 480, 542, 628, 785, 813, 942, 1084, 1256, 1355, 1570, 1626, 1884, 2168, 2355, 2512, 2710, 3140, 3252, 3768, 4065, 4336, 4710, 5024, 5420, 6280, 6504, 7536, 8130, 8672, 9420, 10840, 12560, 13008, 15072, 16260, 18840, 21680, 25120, 26016, 32520, 37680, 42547, 43360, 65040, 75360, 85094, 127641, 130080, 170188, 212735, 255282, 340376, 425470, 510564, 638205, 680752, 850940, 1021128, 1276410, 1361504, 1701880, 2042256, 2552820, 3403760, 4084512, 5105640, 6807520, 10211280, 20422560]

約数ペア:

[(1, 20422560), (2, 10211280), (3, 6807520), (4, 5105640), (5, 4084512), (6, 3403760), (8, 2552820), (10, 2042256), (12, 1701880), (15, 1361504), (16, 1276410), (20, 1021128), (24, 850940), (30, 680752), (32, 638205), (40, 510564), (48, 425470), (60, 340376), (80, 255282), (96, 212735), (120, 170188), (157, 130080), (160, 127641), (240, 85094), (271, 75360), (314, 65040), (471, 43360), (480, 42547), (542, 37680), (628, 32520), (785, 26016), (813, 25120), (942, 21680), (1084, 18840), (1256, 16260), (1355, 15072), (1570, 13008), (1626, 12560), (1884, 10840), (2168, 9420), (2355, 8672), (2512, 8130), (2710, 7536), (3140, 6504), (3252, 6280), (3768, 5420), (4065, 5024), (4336, 4710)]