19386550

素因数分解:

$2^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1$

素因数の和:253

約数の個数: 48

約数和(自身を含む): 37711872

約数和(自身を除く): 18325322

約数列:

[1, 2, 5, 10, 25, 43, 50, 71, 86, 127, 142, 215, 254, 355, 430, 635, 710, 1075, 1270, 1775, 2150, 3053, 3175, 3550, 5461, 6106, 6350, 9017, 10922, 15265, 18034, 27305, 30530, 45085, 54610, 76325, 90170, 136525, 152650, 225425, 273050, 387731, 450850, 775462, 1938655, 3877310, 9693275, 19386550]

約数ペア:

[(1, 19386550), (2, 9693275), (5, 3877310), (10, 1938655), (25, 775462), (43, 450850), (50, 387731), (71, 273050), (86, 225425), (127, 152650), (142, 136525), (215, 90170), (254, 76325), (355, 54610), (430, 45085), (635, 30530), (710, 27305), (1075, 18034), (1270, 15265), (1775, 10922), (2150, 9017), (3053, 6350), (3175, 6106), (3550, 5461)]