15961960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{523}}^1$

素因数の和:650

約数の個数: 64

約数和(自身を含む): 41500800

約数和(自身を除く): 25538840

約数列:

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

約数ペア:

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