691220

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1$

素因数の和:152

約数の個数: 48

約数和(自身を含む): 1632960

約数和(自身を除く): 941740

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 107, 170, 190, 214, 323, 340, 380, 428, 535, 646, 1070, 1292, 1615, 1819, 2033, 2140, 3230, 3638, 4066, 6460, 7276, 8132, 9095, 10165, 18190, 20330, 34561, 36380, 40660, 69122, 138244, 172805, 345610, 691220]

約数ペア:

[(1, 691220), (2, 345610), (4, 172805), (5, 138244), (10, 69122), (17, 40660), (19, 36380), (20, 34561), (34, 20330), (38, 18190), (68, 10165), (76, 9095), (85, 8132), (95, 7276), (107, 6460), (170, 4066), (190, 3638), (214, 3230), (323, 2140), (340, 2033), (380, 1819), (428, 1615), (535, 1292), (646, 1070)]