19332980

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1\times {\mathrm{157}}^1$

素因数の和:344

約数の個数: 48

約数和(自身を含む): 42045696

約数和(自身を除く): 22712716

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 131, 157, 188, 235, 262, 314, 470, 524, 628, 655, 785, 940, 1310, 1570, 2620, 3140, 6157, 7379, 12314, 14758, 20567, 24628, 29516, 30785, 36895, 41134, 61570, 73790, 82268, 102835, 123140, 147580, 205670, 411340, 966649, 1933298, 3866596, 4833245, 9666490, 19332980]

約数ペア:

[(1, 19332980), (2, 9666490), (4, 4833245), (5, 3866596), (10, 1933298), (20, 966649), (47, 411340), (94, 205670), (131, 147580), (157, 123140), (188, 102835), (235, 82268), (262, 73790), (314, 61570), (470, 41134), (524, 36895), (628, 30785), (655, 29516), (785, 24628), (940, 20567), (1310, 14758), (1570, 12314), (2620, 7379), (3140, 6157)]