31131520

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{6949}}^1$

素因数の和:6975

約数の個数: 64

約数和(自身を含む): 85068000

約数和(自身を除く): 53936480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 280, 320, 448, 560, 640, 896, 1120, 2240, 4480, 6949, 13898, 27796, 34745, 48643, 55592, 69490, 97286, 111184, 138980, 194572, 222368, 243215, 277960, 389144, 444736, 486430, 555920, 778288, 889472, 972860, 1111840, 1556576, 1945720, 2223680, 3113152, 3891440, 4447360, 6226304, 7782880, 15565760, 31131520]

約数ペア:

[(1, 31131520), (2, 15565760), (4, 7782880), (5, 6226304), (7, 4447360), (8, 3891440), (10, 3113152), (14, 2223680), (16, 1945720), (20, 1556576), (28, 1111840), (32, 972860), (35, 889472), (40, 778288), (56, 555920), (64, 486430), (70, 444736), (80, 389144), (112, 277960), (128, 243215), (140, 222368), (160, 194572), (224, 138980), (280, 111184), (320, 97286), (448, 69490), (560, 55592), (640, 48643), (896, 34745), (1120, 27796), (2240, 13898), (4480, 6949)]