139609960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{2531}}^1$

素因数の和:2746

約数の個数: 64

約数和(自身を含む): 360961920

約数和(自身を除く): 221351960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 197, 280, 394, 788, 985, 1379, 1576, 1970, 2531, 2758, 3940, 5062, 5516, 6895, 7880, 10124, 11032, 12655, 13790, 17717, 20248, 25310, 27580, 35434, 50620, 55160, 70868, 88585, 101240, 141736, 177170, 354340, 498607, 708680, 997214, 1994428, 2493035, 3490249, 3988856, 4986070, 6980498, 9972140, 13960996, 17451245, 19944280, 27921992, 34902490, 69804980, 139609960]

約数ペア:

[(1, 139609960), (2, 69804980), (4, 34902490), (5, 27921992), (7, 19944280), (8, 17451245), (10, 13960996), (14, 9972140), (20, 6980498), (28, 4986070), (35, 3988856), (40, 3490249), (56, 2493035), (70, 1994428), (140, 997214), (197, 708680), (280, 498607), (394, 354340), (788, 177170), (985, 141736), (1379, 101240), (1576, 88585), (1970, 70868), (2531, 55160), (2758, 50620), (3940, 35434), (5062, 27580), (5516, 25310), (6895, 20248), (7880, 17717), (10124, 13790), (11032, 12655)]