8171560

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{197}}^1$

素因数の和:286

約数の個数: 64

約数和(自身を含む): 19887120

約数和(自身を除く): 11715560

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 61, 68, 85, 122, 136, 170, 197, 244, 305, 340, 394, 488, 610, 680, 788, 985, 1037, 1220, 1576, 1970, 2074, 2440, 3349, 3940, 4148, 5185, 6698, 7880, 8296, 10370, 12017, 13396, 16745, 20740, 24034, 26792, 33490, 41480, 48068, 60085, 66980, 96136, 120170, 133960, 204289, 240340, 408578, 480680, 817156, 1021445, 1634312, 2042890, 4085780, 8171560]

約数ペア:

[(1, 8171560), (2, 4085780), (4, 2042890), (5, 1634312), (8, 1021445), (10, 817156), (17, 480680), (20, 408578), (34, 240340), (40, 204289), (61, 133960), (68, 120170), (85, 96136), (122, 66980), (136, 60085), (170, 48068), (197, 41480), (244, 33490), (305, 26792), (340, 24034), (394, 20740), (488, 16745), (610, 13396), (680, 12017), (788, 10370), (985, 8296), (1037, 7880), (1220, 6698), (1576, 5185), (1970, 4148), (2074, 3940), (2440, 3349)]