661994831624

素因数分解:

$2^3\times 7^1\times {\mathrm{997}}^1\times {\mathrm{1489}}^1\times {\mathrm{7963}}^1$

素因数の和:10462

約数の個数: 64

約数和(自身を含む): 1421115273600

約数和(自身を除く): 759120441976

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 997, 1489, 1994, 2978, 3988, 5956, 6979, 7963, 7976, 10423, 11912, 13958, 15926, 20846, 27916, 31852, 41692, 55741, 55832, 63704, 83384, 111482, 222964, 445928, 1484533, 2969066, 5938132, 7939111, 10391731, 11856907, 11876264, 15878222, 20783462, 23713814, 31756444, 41566924, 47427628, 55573777, 63512888, 82998349, 83133848, 94855256, 111147554, 165996698, 222295108, 331993396, 444590216, 663986792, 11821336279, 23642672558, 47285345116, 82749353953, 94570690232, 165498707906, 330997415812, 661994831624]

約数ペア:

[(1, 661994831624), (2, 330997415812), (4, 165498707906), (7, 94570690232), (8, 82749353953), (14, 47285345116), (28, 23642672558), (56, 11821336279), (997, 663986792), (1489, 444590216), (1994, 331993396), (2978, 222295108), (3988, 165996698), (5956, 111147554), (6979, 94855256), (7963, 83133848), (7976, 82998349), (10423, 63512888), (11912, 55573777), (13958, 47427628), (15926, 41566924), (20846, 31756444), (27916, 23713814), (31852, 20783462), (41692, 15878222), (55741, 11876264), (55832, 11856907), (63704, 10391731), (83384, 7939111), (111482, 5938132), (222964, 2969066), (445928, 1484533)]