8690540

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{131}}^1$

素因数の和:278

約数の個数: 48

約数和(自身を含む): 19160064

約数和(自身を除く): 10469524

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 107, 124, 131, 155, 214, 262, 310, 428, 524, 535, 620, 655, 1070, 1310, 2140, 2620, 3317, 4061, 6634, 8122, 13268, 14017, 16244, 16585, 20305, 28034, 33170, 40610, 56068, 66340, 70085, 81220, 140170, 280340, 434527, 869054, 1738108, 2172635, 4345270, 8690540]

約数ペア:

[(1, 8690540), (2, 4345270), (4, 2172635), (5, 1738108), (10, 869054), (20, 434527), (31, 280340), (62, 140170), (107, 81220), (124, 70085), (131, 66340), (155, 56068), (214, 40610), (262, 33170), (310, 28034), (428, 20305), (524, 16585), (535, 16244), (620, 14017), (655, 13268), (1070, 8122), (1310, 6634), (2140, 4061), (2620, 3317)]