18545380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{953}}^1$

素因数の和:1108

約数の個数: 48

約数和(自身を含む): 44876160

約数和(自身を除く): 26330780

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 278, 556, 695, 953, 973, 1390, 1906, 1946, 2780, 3812, 3892, 4765, 4865, 6671, 9530, 9730, 13342, 19060, 19460, 26684, 33355, 66710, 132467, 133420, 264934, 529868, 662335, 927269, 1324670, 1854538, 2649340, 3709076, 4636345, 9272690, 18545380]

約数ペア:

[(1, 18545380), (2, 9272690), (4, 4636345), (5, 3709076), (7, 2649340), (10, 1854538), (14, 1324670), (20, 927269), (28, 662335), (35, 529868), (70, 264934), (139, 133420), (140, 132467), (278, 66710), (556, 33355), (695, 26684), (953, 19460), (973, 19060), (1390, 13342), (1906, 9730), (1946, 9530), (2780, 6671), (3812, 4865), (3892, 4765)]