12784400

素因数分解:

$2^4\times 5^2\times {\mathrm{31}}^1\times {\mathrm{1031}}^1$

素因数の和:1080

約数の個数: 60

約数和(自身を含む): 31736064

約数和(自身を除く): 18951664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 50, 62, 80, 100, 124, 155, 200, 248, 310, 400, 496, 620, 775, 1031, 1240, 1550, 2062, 2480, 3100, 4124, 5155, 6200, 8248, 10310, 12400, 16496, 20620, 25775, 31961, 41240, 51550, 63922, 82480, 103100, 127844, 159805, 206200, 255688, 319610, 412400, 511376, 639220, 799025, 1278440, 1598050, 2556880, 3196100, 6392200, 12784400]

約数ペア:

[(1, 12784400), (2, 6392200), (4, 3196100), (5, 2556880), (8, 1598050), (10, 1278440), (16, 799025), (20, 639220), (25, 511376), (31, 412400), (40, 319610), (50, 255688), (62, 206200), (80, 159805), (100, 127844), (124, 103100), (155, 82480), (200, 63922), (248, 51550), (310, 41240), (400, 31961), (496, 25775), (620, 20620), (775, 16496), (1031, 12400), (1240, 10310), (1550, 8248), (2062, 6200), (2480, 5155), (3100, 4124)]