81972100

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{16729}}^1$

素因数の和:16757

約数の個数: 54

約数和(自身を含む): 206933370

約数和(自身を除く): 124961270

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 140, 175, 196, 245, 350, 490, 700, 980, 1225, 2450, 4900, 16729, 33458, 66916, 83645, 117103, 167290, 234206, 334580, 418225, 468412, 585515, 819721, 836450, 1171030, 1639442, 1672900, 2342060, 2927575, 3278884, 4098605, 5855150, 8197210, 11710300, 16394420, 20493025, 40986050, 81972100]

約数ペア:

[(1, 81972100), (2, 40986050), (4, 20493025), (5, 16394420), (7, 11710300), (10, 8197210), (14, 5855150), (20, 4098605), (25, 3278884), (28, 2927575), (35, 2342060), (49, 1672900), (50, 1639442), (70, 1171030), (98, 836450), (100, 819721), (140, 585515), (175, 468412), (196, 418225), (245, 334580), (350, 234206), (490, 167290), (700, 117103), (980, 83645), (1225, 66916), (2450, 33458), (4900, 16729)]