19818069370

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{647}}^1\times {\mathrm{12107}}^1$

素因数の和:12795

約数の個数: 64

約数和(自身を含む): 40673581056

約数和(自身を除く): 20855511686

約数列:

[1, 2, 5, 10, 11, 22, 23, 46, 55, 110, 115, 230, 253, 506, 647, 1265, 1294, 2530, 3235, 6470, 7117, 12107, 14234, 14881, 24214, 29762, 35585, 60535, 71170, 74405, 121070, 133177, 148810, 163691, 266354, 278461, 327382, 556922, 665885, 818455, 1331770, 1392305, 1636910, 2784610, 3063071, 6126142, 7833229, 15315355, 15666458, 30630710, 39166145, 78332290, 86165519, 172331038, 180164267, 360328534, 430827595, 861655190, 900821335, 1801642670, 1981806937, 3963613874, 9909034685, 19818069370]

約数ペア:

[(1, 19818069370), (2, 9909034685), (5, 3963613874), (10, 1981806937), (11, 1801642670), (22, 900821335), (23, 861655190), (46, 430827595), (55, 360328534), (110, 180164267), (115, 172331038), (230, 86165519), (253, 78332290), (506, 39166145), (647, 30630710), (1265, 15666458), (1294, 15315355), (2530, 7833229), (3235, 6126142), (6470, 3063071), (7117, 2784610), (12107, 1636910), (14234, 1392305), (14881, 1331770), (24214, 818455), (29762, 665885), (35585, 556922), (60535, 327382), (71170, 278461), (74405, 266354), (121070, 163691), (133177, 148810)]