1999291215

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{1427}}^1$

素因数の和:1620

約数の個数: 64

約数和(自身を含む): 3474358272

約数和(自身を除く): 1475067057

約数列:

[1, 3, 5, 15, 23, 31, 69, 93, 115, 131, 155, 345, 393, 465, 655, 713, 1427, 1965, 2139, 3013, 3565, 4061, 4281, 7135, 9039, 10695, 12183, 15065, 20305, 21405, 32821, 44237, 45195, 60915, 93403, 98463, 132711, 164105, 186937, 221185, 280209, 467015, 492315, 560811, 663555, 934685, 1017451, 1401045, 2804055, 3052353, 4299551, 5087255, 5795047, 12898653, 15261765, 17385141, 21497755, 28975235, 64493265, 86925705, 133286081, 399858243, 666430405, 1999291215]

約数ペア:

[(1, 1999291215), (3, 666430405), (5, 399858243), (15, 133286081), (23, 86925705), (31, 64493265), (69, 28975235), (93, 21497755), (115, 17385141), (131, 15261765), (155, 12898653), (345, 5795047), (393, 5087255), (465, 4299551), (655, 3052353), (713, 2804055), (1427, 1401045), (1965, 1017451), (2139, 934685), (3013, 663555), (3565, 560811), (4061, 492315), (4281, 467015), (7135, 280209), (9039, 221185), (10695, 186937), (12183, 164105), (15065, 132711), (20305, 98463), (21405, 93403), (32821, 60915), (44237, 45195)]