87868690

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{433}}^1$

素因数の和:683

約数の個数: 64

約数和(自身を含む): 195987456

約数和(自身を除く): 108118766

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 223, 433, 446, 455, 866, 910, 1115, 1561, 2165, 2230, 2899, 3031, 3122, 4330, 5629, 5798, 6062, 7805, 11258, 14495, 15155, 15610, 20293, 28145, 28990, 30310, 39403, 40586, 56290, 78806, 96559, 101465, 193118, 197015, 202930, 394030, 482795, 675913, 965590, 1255267, 1351826, 2510534, 3379565, 6276335, 6759130, 8786869, 12552670, 17573738, 43934345, 87868690]

約数ペア:

[(1, 87868690), (2, 43934345), (5, 17573738), (7, 12552670), (10, 8786869), (13, 6759130), (14, 6276335), (26, 3379565), (35, 2510534), (65, 1351826), (70, 1255267), (91, 965590), (130, 675913), (182, 482795), (223, 394030), (433, 202930), (446, 197015), (455, 193118), (866, 101465), (910, 96559), (1115, 78806), (1561, 56290), (2165, 40586), (2230, 39403), (2899, 30310), (3031, 28990), (3122, 28145), (4330, 20293), (5629, 15610), (5798, 15155), (6062, 14495), (7805, 11258)]