12902890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1289}}^1$

素因数の和:1327

約数の個数: 64

約数和(自身を含む): 31207680

約数和(自身を除く): 18304790

約数列:

[1, 2, 5, 7, 10, 11, 13, 14, 22, 26, 35, 55, 65, 70, 77, 91, 110, 130, 143, 154, 182, 286, 385, 455, 715, 770, 910, 1001, 1289, 1430, 2002, 2578, 5005, 6445, 9023, 10010, 12890, 14179, 16757, 18046, 28358, 33514, 45115, 70895, 83785, 90230, 99253, 117299, 141790, 167570, 184327, 198506, 234598, 368654, 496265, 586495, 921635, 992530, 1172990, 1290289, 1843270, 2580578, 6451445, 12902890]

約数ペア:

[(1, 12902890), (2, 6451445), (5, 2580578), (7, 1843270), (10, 1290289), (11, 1172990), (13, 992530), (14, 921635), (22, 586495), (26, 496265), (35, 368654), (55, 234598), (65, 198506), (70, 184327), (77, 167570), (91, 141790), (110, 117299), (130, 99253), (143, 90230), (154, 83785), (182, 70895), (286, 45115), (385, 33514), (455, 28358), (715, 18046), (770, 16757), (910, 14179), (1001, 12890), (1289, 10010), (1430, 9023), (2002, 6445), (2578, 5005)]