1998889505428

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{233}}^1\times {\mathrm{1123}}^1\times {\mathrm{100517}}^1$

素因数の和:101896

約数の個数: 48

約数和(自身を含む): 3701297920320

約数和(自身を除く): 1702408414892

約数列:

[1, 2, 4, 19, 38, 76, 233, 466, 932, 1123, 2246, 4427, 4492, 8854, 17708, 21337, 42674, 85348, 100517, 201034, 261659, 402068, 523318, 1046636, 1909823, 3819646, 4971521, 7639292, 9943042, 19886084, 23420461, 46840922, 93681844, 112880591, 225761182, 444988759, 451522364, 889977518, 1779955036, 2144731229, 4289462458, 8578924916, 26301177703, 52602355406, 105204710812, 499722376357, 999444752714, 1998889505428]

約数ペア:

[(1, 1998889505428), (2, 999444752714), (4, 499722376357), (19, 105204710812), (38, 52602355406), (76, 26301177703), (233, 8578924916), (466, 4289462458), (932, 2144731229), (1123, 1779955036), (2246, 889977518), (4427, 451522364), (4492, 444988759), (8854, 225761182), (17708, 112880591), (21337, 93681844), (42674, 46840922), (85348, 23420461), (100517, 19886084), (201034, 9943042), (261659, 7639292), (402068, 4971521), (523318, 3819646), (1046636, 1909823)]