19110280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{521}}^1$

素因数の和:670

約数の個数: 64

約数和(自身を含む): 49610880

約数和(自身を除く): 30500600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 131, 140, 262, 280, 521, 524, 655, 917, 1042, 1048, 1310, 1834, 2084, 2605, 2620, 3647, 3668, 4168, 4585, 5210, 5240, 7294, 7336, 9170, 10420, 14588, 18235, 18340, 20840, 29176, 36470, 36680, 68251, 72940, 136502, 145880, 273004, 341255, 477757, 546008, 682510, 955514, 1365020, 1911028, 2388785, 2730040, 3822056, 4777570, 9555140, 19110280]

約数ペア:

[(1, 19110280), (2, 9555140), (4, 4777570), (5, 3822056), (7, 2730040), (8, 2388785), (10, 1911028), (14, 1365020), (20, 955514), (28, 682510), (35, 546008), (40, 477757), (56, 341255), (70, 273004), (131, 145880), (140, 136502), (262, 72940), (280, 68251), (521, 36680), (524, 36470), (655, 29176), (917, 20840), (1042, 18340), (1048, 18235), (1310, 14588), (1834, 10420), (2084, 9170), (2605, 7336), (2620, 7294), (3647, 5240), (3668, 5210), (4168, 4585)]