20178487765

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{241}}^1\times {\mathrm{281}}^1\times {\mathrm{2591}}^1$

素因数の和:3141

約数の個数: 32

約数和(自身を含む): 25471936512

約数和(自身を除く): 5293448747

約数列:

[1, 5, 23, 115, 241, 281, 1205, 1405, 2591, 5543, 6463, 12955, 27715, 32315, 59593, 67721, 297965, 338605, 624431, 728071, 1557583, 3122155, 3640355, 7787915, 14361913, 16745633, 71809565, 83728165, 175465111, 877325555, 4035697553, 20178487765]

約数ペア:

[(1, 20178487765), (5, 4035697553), (23, 877325555), (115, 175465111), (241, 83728165), (281, 71809565), (1205, 16745633), (1405, 14361913), (2591, 7787915), (5543, 3640355), (6463, 3122155), (12955, 1557583), (27715, 728071), (32315, 624431), (59593, 338605), (67721, 297965)]