8490280

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{167}}^1$

素因数の和:250

約数の個数: 64

約数和(自身を含む): 20321280

約数和(自身を除く): 11831000

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 41, 62, 82, 124, 155, 164, 167, 205, 248, 310, 328, 334, 410, 620, 668, 820, 835, 1240, 1271, 1336, 1640, 1670, 2542, 3340, 5084, 5177, 6355, 6680, 6847, 10168, 10354, 12710, 13694, 20708, 25420, 25885, 27388, 34235, 41416, 50840, 51770, 54776, 68470, 103540, 136940, 207080, 212257, 273880, 424514, 849028, 1061285, 1698056, 2122570, 4245140, 8490280]

約数ペア:

[(1, 8490280), (2, 4245140), (4, 2122570), (5, 1698056), (8, 1061285), (10, 849028), (20, 424514), (31, 273880), (40, 212257), (41, 207080), (62, 136940), (82, 103540), (124, 68470), (155, 54776), (164, 51770), (167, 50840), (205, 41416), (248, 34235), (310, 27388), (328, 25885), (334, 25420), (410, 20708), (620, 13694), (668, 12710), (820, 10354), (835, 10168), (1240, 6847), (1271, 6680), (1336, 6355), (1640, 5177), (1670, 5084), (2542, 3340)]