31191840

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{21661}}^1$

素因数の和:21682

約数の個数: 72

約数和(自身を含む): 106447068

約数和(自身を除く): 75255228

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 21661, 43322, 64983, 86644, 108305, 129966, 173288, 194949, 216610, 259932, 324915, 346576, 389898, 433220, 519864, 649830, 693152, 779796, 866440, 974745, 1039728, 1299660, 1559592, 1732880, 1949490, 2079456, 2599320, 3119184, 3465760, 3898980, 5198640, 6238368, 7797960, 10397280, 15595920, 31191840]

約数ペア:

[(1, 31191840), (2, 15595920), (3, 10397280), (4, 7797960), (5, 6238368), (6, 5198640), (8, 3898980), (9, 3465760), (10, 3119184), (12, 2599320), (15, 2079456), (16, 1949490), (18, 1732880), (20, 1559592), (24, 1299660), (30, 1039728), (32, 974745), (36, 866440), (40, 779796), (45, 693152), (48, 649830), (60, 519864), (72, 433220), (80, 389898), (90, 346576), (96, 324915), (120, 259932), (144, 216610), (160, 194949), (180, 173288), (240, 129966), (288, 108305), (360, 86644), (480, 64983), (720, 43322), (1440, 21661)]