20623930

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{29}}^1\times {\mathrm{197}}^1$

素因数の和:271

約数の個数: 48

約数和(自身を含む): 40736520

約数和(自身を除く): 20112590

約数列:

[1, 2, 5, 10, 19, 29, 38, 58, 95, 145, 190, 197, 290, 361, 394, 551, 722, 985, 1102, 1805, 1970, 2755, 3610, 3743, 5510, 5713, 7486, 10469, 11426, 18715, 20938, 28565, 37430, 52345, 57130, 71117, 104690, 108547, 142234, 217094, 355585, 542735, 711170, 1085470, 2062393, 4124786, 10311965, 20623930]

約数ペア:

[(1, 20623930), (2, 10311965), (5, 4124786), (10, 2062393), (19, 1085470), (29, 711170), (38, 542735), (58, 355585), (95, 217094), (145, 142234), (190, 108547), (197, 104690), (290, 71117), (361, 57130), (394, 52345), (551, 37430), (722, 28565), (985, 20938), (1102, 18715), (1805, 11426), (1970, 10469), (2755, 7486), (3610, 5713), (3743, 5510)]