645516

素因数分解:

$2^2\times 3^3\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:195

約数の個数: 48

約数和(自身を含む): 1724800

約数和(自身を除く): 1079284

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 43, 54, 86, 108, 129, 139, 172, 258, 278, 387, 417, 516, 556, 774, 834, 1161, 1251, 1548, 1668, 2322, 2502, 3753, 4644, 5004, 5977, 7506, 11954, 15012, 17931, 23908, 35862, 53793, 71724, 107586, 161379, 215172, 322758, 645516]

約数ペア:

[(1, 645516), (2, 322758), (3, 215172), (4, 161379), (6, 107586), (9, 71724), (12, 53793), (18, 35862), (27, 23908), (36, 17931), (43, 15012), (54, 11954), (86, 7506), (108, 5977), (129, 5004), (139, 4644), (172, 3753), (258, 2502), (278, 2322), (387, 1668), (417, 1548), (516, 1251), (556, 1161), (774, 834)]