201990640

素因数分解:

$2^4\times 5^1\times {\mathrm{877}}^1\times {\mathrm{2879}}^1$

素因数の和:3769

約数の個数: 40

約数和(自身を含む): 470327040

約数和(自身を除く): 268336400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 877, 1754, 2879, 3508, 4385, 5758, 7016, 8770, 11516, 14032, 14395, 17540, 23032, 28790, 35080, 46064, 57580, 70160, 115160, 230320, 2524883, 5049766, 10099532, 12624415, 20199064, 25248830, 40398128, 50497660, 100995320, 201990640]

約数ペア:

[(1, 201990640), (2, 100995320), (4, 50497660), (5, 40398128), (8, 25248830), (10, 20199064), (16, 12624415), (20, 10099532), (40, 5049766), (80, 2524883), (877, 230320), (1754, 115160), (2879, 70160), (3508, 57580), (4385, 46064), (5758, 35080), (7016, 28790), (8770, 23032), (11516, 17540), (14032, 14395)]