19166390

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^2\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:161

約数の個数: 48

約数和(自身を含む): 37250928

約数和(自身を除く): 18084538

約数列:

[1, 2, 5, 10, 29, 43, 53, 58, 86, 106, 145, 215, 265, 290, 430, 530, 841, 1247, 1537, 1682, 2279, 2494, 3074, 4205, 4558, 6235, 7685, 8410, 11395, 12470, 15370, 22790, 36163, 44573, 66091, 72326, 89146, 132182, 180815, 222865, 330455, 361630, 445730, 660910, 1916639, 3833278, 9583195, 19166390]

約数ペア:

[(1, 19166390), (2, 9583195), (5, 3833278), (10, 1916639), (29, 660910), (43, 445730), (53, 361630), (58, 330455), (86, 222865), (106, 180815), (145, 132182), (215, 89146), (265, 72326), (290, 66091), (430, 44573), (530, 36163), (841, 22790), (1247, 15370), (1537, 12470), (1682, 11395), (2279, 8410), (2494, 7685), (3074, 6235), (4205, 4558)]