217770640

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{51361}}^1$

素因数の和:51427

約数の個数: 40

約数和(自身を含む): 515879928

約数和(自身を除く): 298109288

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 424, 530, 848, 1060, 2120, 4240, 51361, 102722, 205444, 256805, 410888, 513610, 821776, 1027220, 2054440, 2722133, 4108880, 5444266, 10888532, 13610665, 21777064, 27221330, 43554128, 54442660, 108885320, 217770640]

約数ペア:

[(1, 217770640), (2, 108885320), (4, 54442660), (5, 43554128), (8, 27221330), (10, 21777064), (16, 13610665), (20, 10888532), (40, 5444266), (53, 4108880), (80, 2722133), (106, 2054440), (212, 1027220), (265, 821776), (424, 513610), (530, 410888), (848, 256805), (1060, 205444), (2120, 102722), (4240, 51361)]