81939120

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{223}}^1\times {\mathrm{1531}}^1$

素因数の和:1770

約数の個数: 80

約数和(自身を含む): 255316992

約数和(自身を除く): 173377872

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 223, 240, 446, 669, 892, 1115, 1338, 1531, 1784, 2230, 2676, 3062, 3345, 3568, 4460, 4593, 5352, 6124, 6690, 7655, 8920, 9186, 10704, 12248, 13380, 15310, 17840, 18372, 22965, 24496, 26760, 30620, 36744, 45930, 53520, 61240, 73488, 91860, 122480, 183720, 341413, 367440, 682826, 1024239, 1365652, 1707065, 2048478, 2731304, 3414130, 4096956, 5121195, 5462608, 6828260, 8193912, 10242390, 13656520, 16387824, 20484780, 27313040, 40969560, 81939120]

約数ペア:

[(1, 81939120), (2, 40969560), (3, 27313040), (4, 20484780), (5, 16387824), (6, 13656520), (8, 10242390), (10, 8193912), (12, 6828260), (15, 5462608), (16, 5121195), (20, 4096956), (24, 3414130), (30, 2731304), (40, 2048478), (48, 1707065), (60, 1365652), (80, 1024239), (120, 682826), (223, 367440), (240, 341413), (446, 183720), (669, 122480), (892, 91860), (1115, 73488), (1338, 61240), (1531, 53520), (1784, 45930), (2230, 36744), (2676, 30620), (3062, 26760), (3345, 24496), (3568, 22965), (4460, 18372), (4593, 17840), (5352, 15310), (6124, 13380), (6690, 12248), (7655, 10704), (8920, 9186)]