273217780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{20359}}^1$

素因数の和:20440

約数の個数: 48

約数和(自身を含む): 636209280

約数和(自身を除く): 362991500

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 61, 110, 122, 220, 244, 305, 610, 671, 1220, 1342, 2684, 3355, 6710, 13420, 20359, 40718, 81436, 101795, 203590, 223949, 407180, 447898, 895796, 1119745, 1241899, 2239490, 2483798, 4478980, 4967596, 6209495, 12418990, 13660889, 24837980, 27321778, 54643556, 68304445, 136608890, 273217780]

約数ペア:

[(1, 273217780), (2, 136608890), (4, 68304445), (5, 54643556), (10, 27321778), (11, 24837980), (20, 13660889), (22, 12418990), (44, 6209495), (55, 4967596), (61, 4478980), (110, 2483798), (122, 2239490), (220, 1241899), (244, 1119745), (305, 895796), (610, 447898), (671, 407180), (1220, 223949), (1342, 203590), (2684, 101795), (3355, 81436), (6710, 40718), (13420, 20359)]