400280060

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{17449}}^1$

素因数の和:17526

約数の個数: 48

約数和(自身を含む): 891206400

約数和(自身を除く): 490926340

約数列:

[1, 2, 4, 5, 10, 20, 31, 37, 62, 74, 124, 148, 155, 185, 310, 370, 620, 740, 1147, 2294, 4588, 5735, 11470, 17449, 22940, 34898, 69796, 87245, 174490, 348980, 540919, 645613, 1081838, 1291226, 2163676, 2582452, 2704595, 3228065, 5409190, 6456130, 10818380, 12912260, 20014003, 40028006, 80056012, 100070015, 200140030, 400280060]

約数ペア:

[(1, 400280060), (2, 200140030), (4, 100070015), (5, 80056012), (10, 40028006), (20, 20014003), (31, 12912260), (37, 10818380), (62, 6456130), (74, 5409190), (124, 3228065), (148, 2704595), (155, 2582452), (185, 2163676), (310, 1291226), (370, 1081838), (620, 645613), (740, 540919), (1147, 348980), (2294, 174490), (4588, 87245), (5735, 69796), (11470, 34898), (17449, 22940)]