18913303340

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{257}}^1\times {\mathrm{69427}}^1$

素因数の和:69746

約数の個数: 48

約数和(自身を含む): 40625377632

約数和(自身を除く): 21712074292

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 257, 265, 514, 530, 1028, 1060, 1285, 2570, 5140, 13621, 27242, 54484, 68105, 69427, 136210, 138854, 272420, 277708, 347135, 694270, 1388540, 3679631, 7359262, 14718524, 17842739, 18398155, 35685478, 36796310, 71370956, 73592620, 89213695, 178427390, 356854780, 945665167, 1891330334, 3782660668, 4728325835, 9456651670, 18913303340]

約数ペア:

[(1, 18913303340), (2, 9456651670), (4, 4728325835), (5, 3782660668), (10, 1891330334), (20, 945665167), (53, 356854780), (106, 178427390), (212, 89213695), (257, 73592620), (265, 71370956), (514, 36796310), (530, 35685478), (1028, 18398155), (1060, 17842739), (1285, 14718524), (2570, 7359262), (5140, 3679631), (13621, 1388540), (27242, 694270), (54484, 347135), (68105, 277708), (69427, 272420), (136210, 138854)]