1978944772

素因数分解:

$2^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31259}}^1$

素因数の和:31313

約数の個数: 72

約数和(自身を含む): 4490186400

約数和(自身を除く): 2511241628

約数列:

[1, 2, 4, 7, 14, 17, 19, 28, 34, 38, 49, 68, 76, 98, 119, 133, 196, 238, 266, 323, 476, 532, 646, 833, 931, 1292, 1666, 1862, 2261, 3332, 3724, 4522, 9044, 15827, 31259, 31654, 62518, 63308, 125036, 218813, 437626, 531403, 593921, 875252, 1062806, 1187842, 1531691, 2125612, 2375684, 3063382, 3719821, 4157447, 6126764, 7439642, 8314894, 10096657, 14879284, 16629788, 20193314, 26038747, 29102129, 40386628, 52077494, 58204258, 70676599, 104154988, 116408516, 141353198, 282706396, 494736193, 989472386, 1978944772]

約数ペア:

[(1, 1978944772), (2, 989472386), (4, 494736193), (7, 282706396), (14, 141353198), (17, 116408516), (19, 104154988), (28, 70676599), (34, 58204258), (38, 52077494), (49, 40386628), (68, 29102129), (76, 26038747), (98, 20193314), (119, 16629788), (133, 14879284), (196, 10096657), (238, 8314894), (266, 7439642), (323, 6126764), (476, 4157447), (532, 3719821), (646, 3063382), (833, 2375684), (931, 2125612), (1292, 1531691), (1666, 1187842), (1862, 1062806), (2261, 875252), (3332, 593921), (3724, 531403), (4522, 437626), (9044, 218813), (15827, 125036), (31259, 63308), (31654, 62518)]