31923920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{523}}^1$

素因数の和:652

約数の個数: 80

約数和(自身を含む): 85768320

約数和(自身を除く): 53844400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 109, 112, 140, 218, 280, 436, 523, 545, 560, 763, 872, 1046, 1090, 1526, 1744, 2092, 2180, 2615, 3052, 3661, 3815, 4184, 4360, 5230, 6104, 7322, 7630, 8368, 8720, 10460, 12208, 14644, 15260, 18305, 20920, 29288, 30520, 36610, 41840, 57007, 58576, 61040, 73220, 114014, 146440, 228028, 285035, 292880, 399049, 456056, 570070, 798098, 912112, 1140140, 1596196, 1995245, 2280280, 3192392, 3990490, 4560560, 6384784, 7980980, 15961960, 31923920]

約数ペア:

[(1, 31923920), (2, 15961960), (4, 7980980), (5, 6384784), (7, 4560560), (8, 3990490), (10, 3192392), (14, 2280280), (16, 1995245), (20, 1596196), (28, 1140140), (35, 912112), (40, 798098), (56, 570070), (70, 456056), (80, 399049), (109, 292880), (112, 285035), (140, 228028), (218, 146440), (280, 114014), (436, 73220), (523, 61040), (545, 58576), (560, 57007), (763, 41840), (872, 36610), (1046, 30520), (1090, 29288), (1526, 20920), (1744, 18305), (2092, 15260), (2180, 14644), (2615, 12208), (3052, 10460), (3661, 8720), (3815, 8368), (4184, 7630), (4360, 7322), (5230, 6104)]