20348905

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1$

素因数の和:253

約数の個数: 32

約数和(自身を含む): 27417600

約数和(自身を除く): 7068695

約数列:

[1, 5, 19, 23, 67, 95, 115, 139, 335, 437, 695, 1273, 1541, 2185, 2641, 3197, 6365, 7705, 9313, 13205, 15985, 29279, 46565, 60743, 146395, 176947, 214199, 303715, 884735, 1070995, 4069781, 20348905]

約数ペア:

[(1, 20348905), (5, 4069781), (19, 1070995), (23, 884735), (67, 303715), (95, 214199), (115, 176947), (139, 146395), (335, 60743), (437, 46565), (695, 29279), (1273, 15985), (1541, 13205), (2185, 9313), (2641, 7705), (3197, 6365)]