20888021205

素因数分解:

$3^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{17383}}^1$

素因数の和:17469

約数の個数: 96

約数和(自身を含む): 40092788736

約数和(自身を除く): 19204767531

約数列:

[1, 3, 5, 9, 15, 23, 27, 43, 45, 69, 81, 115, 129, 135, 207, 215, 243, 345, 387, 405, 621, 645, 989, 1035, 1161, 1215, 1863, 1935, 2967, 3105, 3483, 4945, 5589, 5805, 8901, 9315, 10449, 14835, 17383, 17415, 26703, 27945, 44505, 52149, 52245, 80109, 86915, 133515, 156447, 240327, 260745, 399809, 400545, 469341, 747469, 782235, 1199427, 1201635, 1408023, 1999045, 2242407, 2346705, 3598281, 3737345, 4224069, 5997135, 6727221, 7040115, 10794843, 11212035, 17191787, 17991405, 20181663, 21120345, 32384529, 33636105, 51575361, 53974215, 60544989, 85958935, 97153587, 100908315, 154726083, 161922645, 181634967, 257876805, 302724945, 464178249, 485767935, 773630415, 908174835, 1392534747, 2320891245, 4177604241, 6962673735, 20888021205]

約数ペア:

[(1, 20888021205), (3, 6962673735), (5, 4177604241), (9, 2320891245), (15, 1392534747), (23, 908174835), (27, 773630415), (43, 485767935), (45, 464178249), (69, 302724945), (81, 257876805), (115, 181634967), (129, 161922645), (135, 154726083), (207, 100908315), (215, 97153587), (243, 85958935), (345, 60544989), (387, 53974215), (405, 51575361), (621, 33636105), (645, 32384529), (989, 21120345), (1035, 20181663), (1161, 17991405), (1215, 17191787), (1863, 11212035), (1935, 10794843), (2967, 7040115), (3105, 6727221), (3483, 5997135), (4945, 4224069), (5589, 3737345), (5805, 3598281), (8901, 2346705), (9315, 2242407), (10449, 1999045), (14835, 1408023), (17383, 1201635), (17415, 1199427), (26703, 782235), (27945, 747469), (44505, 469341), (52149, 400545), (52245, 399809), (80109, 260745), (86915, 240327), (133515, 156447)]