21897680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{39103}}^1$

素因数の和:39123

約数の個数: 40

約数和(自身を含む): 58186752

約数和(自身を除く): 36289072

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 39103, 78206, 156412, 195515, 273721, 312824, 391030, 547442, 625648, 782060, 1094884, 1368605, 1564120, 2189768, 2737210, 3128240, 4379536, 5474420, 10948840, 21897680]

約数ペア:

[(1, 21897680), (2, 10948840), (4, 5474420), (5, 4379536), (7, 3128240), (8, 2737210), (10, 2189768), (14, 1564120), (16, 1368605), (20, 1094884), (28, 782060), (35, 625648), (40, 547442), (56, 391030), (70, 312824), (80, 273721), (112, 195515), (140, 156412), (280, 78206), (560, 39103)]