128531208

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{137}}^1$

素因数の和:287

約数の個数: 128

約数和(自身を含む): 363525120

約数和(自身を除く): 234993912

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 31, 39, 52, 62, 78, 93, 97, 104, 124, 137, 156, 186, 194, 248, 274, 291, 312, 372, 388, 403, 411, 548, 582, 744, 776, 806, 822, 1096, 1164, 1209, 1261, 1612, 1644, 1781, 2328, 2418, 2522, 3007, 3224, 3288, 3562, 3783, 4247, 4836, 5044, 5343, 6014, 7124, 7566, 8494, 9021, 9672, 10088, 10686, 12028, 12741, 13289, 14248, 15132, 16988, 18042, 21372, 24056, 25482, 26578, 30264, 33976, 36084, 39091, 39867, 42744, 50964, 53156, 55211, 72168, 78182, 79734, 101928, 106312, 110422, 117273, 156364, 159468, 165633, 172757, 220844, 234546, 312728, 318936, 331266, 345514, 411959, 441688, 469092, 518271, 662532, 691028, 823918, 938184, 1036542, 1235877, 1325064, 1382056, 1647836, 2073084, 2471754, 3295672, 4146168, 4943508, 5355467, 9887016, 10710934, 16066401, 21421868, 32132802, 42843736, 64265604, 128531208]

約数ペア:

[(1, 128531208), (2, 64265604), (3, 42843736), (4, 32132802), (6, 21421868), (8, 16066401), (12, 10710934), (13, 9887016), (24, 5355467), (26, 4943508), (31, 4146168), (39, 3295672), (52, 2471754), (62, 2073084), (78, 1647836), (93, 1382056), (97, 1325064), (104, 1235877), (124, 1036542), (137, 938184), (156, 823918), (186, 691028), (194, 662532), (248, 518271), (274, 469092), (291, 441688), (312, 411959), (372, 345514), (388, 331266), (403, 318936), (411, 312728), (548, 234546), (582, 220844), (744, 172757), (776, 165633), (806, 159468), (822, 156364), (1096, 117273), (1164, 110422), (1209, 106312), (1261, 101928), (1612, 79734), (1644, 78182), (1781, 72168), (2328, 55211), (2418, 53156), (2522, 50964), (3007, 42744), (3224, 39867), (3288, 39091), (3562, 36084), (3783, 33976), (4247, 30264), (4836, 26578), (5044, 25482), (5343, 24056), (6014, 21372), (7124, 18042), (7566, 16988), (8494, 15132), (9021, 14248), (9672, 13289), (10088, 12741), (10686, 12028)]