9890240

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{997}}^1$

素因数の和:1045

約数の個数: 56

約数和(自身を含む): 24335232

約数和(自身を除く): 14444992

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 992, 997, 1240, 1984, 1994, 2480, 3988, 4960, 4985, 7976, 9920, 9970, 15952, 19940, 30907, 31904, 39880, 61814, 63808, 79760, 123628, 154535, 159520, 247256, 309070, 319040, 494512, 618140, 989024, 1236280, 1978048, 2472560, 4945120, 9890240]

約数ペア:

[(1, 9890240), (2, 4945120), (4, 2472560), (5, 1978048), (8, 1236280), (10, 989024), (16, 618140), (20, 494512), (31, 319040), (32, 309070), (40, 247256), (62, 159520), (64, 154535), (80, 123628), (124, 79760), (155, 63808), (160, 61814), (248, 39880), (310, 31904), (320, 30907), (496, 19940), (620, 15952), (992, 9970), (997, 9920), (1240, 7976), (1984, 4985), (1994, 4960), (2480, 3988)]