16898875

素因数分解:

$5^3\times 7^2\times {\mathrm{31}}^1\times {\mathrm{89}}^1$

素因数の和:149

約数の個数: 48

約数和(自身を含む): 25608960

約数和(自身を除く): 8710085

約数列:

[1, 5, 7, 25, 31, 35, 49, 89, 125, 155, 175, 217, 245, 445, 623, 775, 875, 1085, 1225, 1519, 2225, 2759, 3115, 3875, 4361, 5425, 6125, 7595, 11125, 13795, 15575, 19313, 21805, 27125, 37975, 68975, 77875, 96565, 109025, 135191, 189875, 344875, 482825, 545125, 675955, 2414125, 3379775, 16898875]

約数ペア:

[(1, 16898875), (5, 3379775), (7, 2414125), (25, 675955), (31, 545125), (35, 482825), (49, 344875), (89, 189875), (125, 135191), (155, 109025), (175, 96565), (217, 77875), (245, 68975), (445, 37975), (623, 27125), (775, 21805), (875, 19313), (1085, 15575), (1225, 13795), (1519, 11125), (2225, 7595), (2759, 6125), (3115, 5425), (3875, 4361)]