20804956245

素因数分解:

$3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{97}}^1\times {\mathrm{1031}}^1$

素因数の和:1232

約数の個数: 128

約数和(自身を含む): 39612948480

約数和(自身を除く): 18807992235

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 67, 69, 97, 115, 135, 201, 207, 291, 335, 345, 485, 603, 621, 873, 1005, 1031, 1035, 1455, 1541, 1809, 2231, 2619, 3015, 3093, 3105, 4365, 4623, 5155, 6499, 6693, 7705, 9045, 9279, 11155, 13095, 13869, 15465, 19497, 20079, 23115, 23713, 27837, 32495, 33465, 41607, 46395, 58491, 60237, 69077, 69345, 71139, 97485, 100007, 100395, 118565, 139185, 149477, 175473, 207231, 208035, 213417, 292455, 300021, 301185, 345385, 355695, 448431, 500035, 621693, 640251, 747385, 877365, 900063, 1036155, 1067085, 1345293, 1500105, 1588771, 1865079, 2242155, 2300161, 2700189, 3108465, 3201255, 4035879, 4500315, 4766313, 6700469, 6726465, 6900483, 7943855, 9325395, 11500805, 13500945, 14298939, 20101407, 20179395, 20701449, 23831565, 33502345, 34502415, 42896817, 60304221, 62104347, 71494695, 100507035, 103507245, 154110787, 180912663, 214484085, 301521105, 310521735, 462332361, 770553935, 904563315, 1386997083, 2311661805, 4160991249, 6934985415, 20804956245]

約数ペア:

[(1, 20804956245), (3, 6934985415), (5, 4160991249), (9, 2311661805), (15, 1386997083), (23, 904563315), (27, 770553935), (45, 462332361), (67, 310521735), (69, 301521105), (97, 214484085), (115, 180912663), (135, 154110787), (201, 103507245), (207, 100507035), (291, 71494695), (335, 62104347), (345, 60304221), (485, 42896817), (603, 34502415), (621, 33502345), (873, 23831565), (1005, 20701449), (1031, 20179395), (1035, 20101407), (1455, 14298939), (1541, 13500945), (1809, 11500805), (2231, 9325395), (2619, 7943855), (3015, 6900483), (3093, 6726465), (3105, 6700469), (4365, 4766313), (4623, 4500315), (5155, 4035879), (6499, 3201255), (6693, 3108465), (7705, 2700189), (9045, 2300161), (9279, 2242155), (11155, 1865079), (13095, 1588771), (13869, 1500105), (15465, 1345293), (19497, 1067085), (20079, 1036155), (23115, 900063), (23713, 877365), (27837, 747385), (32495, 640251), (33465, 621693), (41607, 500035), (46395, 448431), (58491, 355695), (60237, 345385), (69077, 301185), (69345, 300021), (71139, 292455), (97485, 213417), (100007, 208035), (100395, 207231), (118565, 175473), (139185, 149477)]