81378240

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{823}}^1$

素因数の和:946

約数の個数: 112

約数和(自身を含む): 261201408

約数和(自身を除く): 179823168

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 103, 120, 160, 192, 206, 240, 309, 320, 412, 480, 515, 618, 823, 824, 960, 1030, 1236, 1545, 1646, 1648, 2060, 2469, 2472, 3090, 3292, 3296, 4115, 4120, 4938, 4944, 6180, 6584, 6592, 8230, 8240, 9876, 9888, 12345, 12360, 13168, 16460, 16480, 19752, 19776, 24690, 24720, 26336, 32920, 32960, 39504, 49380, 49440, 52672, 65840, 79008, 84769, 98760, 98880, 131680, 158016, 169538, 197520, 254307, 263360, 339076, 395040, 423845, 508614, 678152, 790080, 847690, 1017228, 1271535, 1356304, 1695380, 2034456, 2543070, 2712608, 3390760, 4068912, 5086140, 5425216, 6781520, 8137824, 10172280, 13563040, 16275648, 20344560, 27126080, 40689120, 81378240]

約数ペア:

[(1, 81378240), (2, 40689120), (3, 27126080), (4, 20344560), (5, 16275648), (6, 13563040), (8, 10172280), (10, 8137824), (12, 6781520), (15, 5425216), (16, 5086140), (20, 4068912), (24, 3390760), (30, 2712608), (32, 2543070), (40, 2034456), (48, 1695380), (60, 1356304), (64, 1271535), (80, 1017228), (96, 847690), (103, 790080), (120, 678152), (160, 508614), (192, 423845), (206, 395040), (240, 339076), (309, 263360), (320, 254307), (412, 197520), (480, 169538), (515, 158016), (618, 131680), (823, 98880), (824, 98760), (960, 84769), (1030, 79008), (1236, 65840), (1545, 52672), (1646, 49440), (1648, 49380), (2060, 39504), (2469, 32960), (2472, 32920), (3090, 26336), (3292, 24720), (3296, 24690), (4115, 19776), (4120, 19752), (4938, 16480), (4944, 16460), (6180, 13168), (6584, 12360), (6592, 12345), (8230, 9888), (8240, 9876)]