289194100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{1493}}^1$

素因数の和:1669

約数の個数: 72

約数和(自身を含む): 680815800

約数和(自身を除く): 391621700

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 149, 260, 298, 325, 596, 650, 745, 1300, 1490, 1493, 1937, 2980, 2986, 3725, 3874, 5972, 7450, 7465, 7748, 9685, 14900, 14930, 19370, 19409, 29860, 37325, 38740, 38818, 48425, 74650, 77636, 96850, 97045, 149300, 193700, 194090, 222457, 388180, 444914, 485225, 889828, 970450, 1112285, 1940900, 2224570, 2891941, 4449140, 5561425, 5783882, 11122850, 11567764, 14459705, 22245700, 28919410, 57838820, 72298525, 144597050, 289194100]

約数ペア:

[(1, 289194100), (2, 144597050), (4, 72298525), (5, 57838820), (10, 28919410), (13, 22245700), (20, 14459705), (25, 11567764), (26, 11122850), (50, 5783882), (52, 5561425), (65, 4449140), (100, 2891941), (130, 2224570), (149, 1940900), (260, 1112285), (298, 970450), (325, 889828), (596, 485225), (650, 444914), (745, 388180), (1300, 222457), (1490, 194090), (1493, 193700), (1937, 149300), (2980, 97045), (2986, 96850), (3725, 77636), (3874, 74650), (5972, 48425), (7450, 38818), (7465, 38740), (7748, 37325), (9685, 29860), (14900, 19409), (14930, 19370)]