64747840

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1$

素因数の和:216

約数の個数: 112

約数和(自身を含む): 163275264

約数和(自身を除く): 98527424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 61, 62, 64, 80, 107, 122, 124, 155, 160, 214, 244, 248, 305, 310, 320, 428, 488, 496, 535, 610, 620, 856, 976, 992, 1070, 1220, 1240, 1712, 1891, 1952, 1984, 2140, 2440, 2480, 3317, 3424, 3782, 3904, 4280, 4880, 4960, 6527, 6634, 6848, 7564, 8560, 9455, 9760, 9920, 13054, 13268, 15128, 16585, 17120, 18910, 19520, 26108, 26536, 30256, 32635, 33170, 34240, 37820, 52216, 53072, 60512, 65270, 66340, 75640, 104432, 106144, 121024, 130540, 132680, 151280, 202337, 208864, 212288, 261080, 265360, 302560, 404674, 417728, 522160, 530720, 605120, 809348, 1011685, 1044320, 1061440, 1618696, 2023370, 2088640, 3237392, 4046740, 6474784, 8093480, 12949568, 16186960, 32373920, 64747840]

約数ペア:

[(1, 64747840), (2, 32373920), (4, 16186960), (5, 12949568), (8, 8093480), (10, 6474784), (16, 4046740), (20, 3237392), (31, 2088640), (32, 2023370), (40, 1618696), (61, 1061440), (62, 1044320), (64, 1011685), (80, 809348), (107, 605120), (122, 530720), (124, 522160), (155, 417728), (160, 404674), (214, 302560), (244, 265360), (248, 261080), (305, 212288), (310, 208864), (320, 202337), (428, 151280), (488, 132680), (496, 130540), (535, 121024), (610, 106144), (620, 104432), (856, 75640), (976, 66340), (992, 65270), (1070, 60512), (1220, 53072), (1240, 52216), (1712, 37820), (1891, 34240), (1952, 33170), (1984, 32635), (2140, 30256), (2440, 26536), (2480, 26108), (3317, 19520), (3424, 18910), (3782, 17120), (3904, 16585), (4280, 15128), (4880, 13268), (4960, 13054), (6527, 9920), (6634, 9760), (6848, 9455), (7564, 8560)]