19402060

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1\times {\mathrm{167}}^1$

素因数の和:370

約数の個数: 48

約数和(自身を含む): 42364224

約数和(自身を除く): 22962164

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 157, 167, 185, 314, 334, 370, 628, 668, 740, 785, 835, 1570, 1670, 3140, 3340, 5809, 6179, 11618, 12358, 23236, 24716, 26219, 29045, 30895, 52438, 58090, 61790, 104876, 116180, 123580, 131095, 262190, 524380, 970103, 1940206, 3880412, 4850515, 9701030, 19402060]

約数ペア:

[(1, 19402060), (2, 9701030), (4, 4850515), (5, 3880412), (10, 1940206), (20, 970103), (37, 524380), (74, 262190), (148, 131095), (157, 123580), (167, 116180), (185, 104876), (314, 61790), (334, 58090), (370, 52438), (628, 30895), (668, 29045), (740, 26219), (785, 24716), (835, 23236), (1570, 12358), (1670, 11618), (3140, 6179), (3340, 5809)]